TP-Link Deco X20-4G User guide

Deco X20-4G

Superior Mesh Wi-Fi, Everywhere

User Guide

AX1800 Whole Home Mesh
Wi-Fi 6 Router

1910013157 REV1.0.1 © 2022 TP-Link

Contents

About This Guide ·························································· 1

Appearance ·····································································2

Before You Start ··························································· 3

Set Up Your Deco for 3G/4G Router Mode ····4

Set Up Your Deco for Wireless Router Mode 8

Install LTE External Antennas ······························ 12

Add More Decos ························································ 16

Dashboard ····································································· 17

Check Deco Status ·················································· 18

Set Main Deco ····························································· 20

Remove/Reboot Deco ············································21

HomeShield ·································································· 30

Wi-Fi Settings·······························································31

Guest Network ····························································32

SMS Service (for 3G/4G Router Mode) ··········33

Blacklist ··········································································· 34

Upgrade Your Deco ·················································· 35

Internet Settings (for 3G/4G Router Mode) · 36

PIN Management (for 3G/4G Router Mode) 39

Advanced Features ··················································41

3G/4G Backup (for Wireless Router Mode) ·46

WPS ···················································································49

Create a New Network ············································ 22

Delete a Network ·······················································24

Data Settings (for 3G/4G Router Mode) ········ 25

Manage Connected Devices ······························ 27

Managers ·······································································50

Control Your Deco with Alexa ······························52

Troubleshooting ························································· 53

Authentication ····························································· 56

About This Guide

This guide provides a brief introduction to Deco 4G+ AX1800 Whole Home Mesh Wi-Fi 6 Router and the Deco app, as well as regulatory information.
Features available in Deco may vary by model and software version. Deco availability may also vary by region or ISP. All images, steps, and descriptions

in this guide are only examples and may not reect your actual Deco experience.

Conventions

In this guide, the following conventions are used:

Convention Description

Deco

Underline

Teal

Note:

Tips:

More Info

• Specic product information can be found on the product page at

https://www.tp-link.com.

• A Technical Community is provided for you to discuss our products

https://community.tp-link.com.

at

• Our Technical Support contact information can be found at the

Help center of the Deco app and the Contact Technical Support

page at

Stands for Deco Whole Home Mesh Wi-Fi System/
Unit.

Hyperlinks are in teal and underlined. You can click to

redirect to a website or a specic section.

Key information appears in teal, including
management page text such as menus, items,
buttons and so on.

Ignoring this type of note might result in a malfunction
or damage to the device.

Indicates important information that helps you make
better use of your device.

https://www.tp-link.com/support.

Speed/Coverage/Device Quantity Disclaimer

Maximum wireless signal rates are the physical rates derived from IEEE

Standard 802.11 specications. Actual wireless data throughput and

wireless coverage, and quantity of connected devices are not guaranteed
and will vary as a result of network conditions, client limitations, and
environmental factors, including building materials, obstacles, volume and

density of trac, and client location.

4G Speed Disclaimer

Maximum 4G download speeds depend on external factors such as the
local 4G network coverage, data plan, real-time network capacity, client
limitations, and environmental factors.

Wi-Fi 6 Disclaimer

Use of Wi-Fi 6 and other features including OFDMA, MU-MIMO, 1024­QAM, and BSS Color require clients to support the corresponding features.

Seamless Roaming Disclaimer

Clients need to support 802.11k/v/r and may require additional set up.
Performance may vary depending on the client device.

HomeShield Disclaimer

HomeShield includes the Free Basic Plan. Fees apply for the Pro Plan. Visit

https://www.tp-link.com/homeshield/ for more information.

WPA3 Disclaimer

Use of WPA3 encryption requires clients to also support the
corresponding feature.

1

Appearance

Deco has an issue.

Each Deco has an LED that changes color according to its status, three RJ-45 Ethernet ports, two external antennas port, a SIM card slot, a power slot,
and a Reset button.

Tip: The product label can be found at the bottom of the product.

Pulse yellow:

Deco is resetting.

Solid yellow:

Deco is starting up.

Pulse blue:

Deco is ready for setup
or WPS in progress.

Solid blue:

Deco is setting up.

Pulse green:

Deco is upgrading rmware.

Solid green:

Deco is all set up and connected.

Pulse red:

The satellite Deco is disconnected

from the main Deco.

Solid red:

Reset Button:

Press for 1 second and release to reset Deco to factory

default settings. The light changing from pulsing yellow to
solid yellow indicates a successful reset.

SIM Card Slot:

For inserting a Nano SIM card (not included in the package)

to Deco.

External Antenna Ports:

For connecting external antennas (not included in the package) to your Deco.

Note: Make sure you have installed two external antennas to ensure that Deco's LTE network works properly.

Gigabit Ethernet Ports:

For connecting Deco to your modem, the Ethernet outlet, or for other internet services in
Wireless Router mode.

Note: All WAN/LAN ports will operate as either WAN or LAN ports. Only one port can serve as a WAN port
at a time. When Deco is opetating in 3G/4G Router mode, all the ports can only work as LAN ports.

Power Slot:

For connecting Deco to the power socket via the provided power adapter.

2

Before You Start

You can set your Deco as a 3G/4G router or a wireless router to meet the needs of different network scenarios.

3G/4G Router Mode

When working in 3G/4G Router mode, Deco connects to the internet via a SIM card inserted.

Follow

Wireless Router Mode

When working in Wireless Router mode, Deco connects to the internet via an Ethernet cable. If you already have a modem or your internet comes via
an Ethernet cable from the wall, you can set the Deco as a regular wireless router to share the internet.

Follow

Set Up Your Deco for 3G/4G Router Mode to set up your Deco.

Set Up Your Deco for Wireless Router Mode to set up your Deco.

3

Set Up Your Deco for 3G/4G Router Mode

When working in 3G/4G Router mode, Deco connects to the internet via a SIM card inserted. The intuitive Deco app guides you through an easy setup
process that gets each unit up and all your devices connected and online.

Follow the steps below to set up your Deco for 3G/4G Router mode.

1. Download and install the Deco app

Scan the QR code below or go to Google
Play or the App Store to download the Deco
app. Install the app on your Android or iOS
smartphone or tablet.

or

2. Log in with TP-Link ID

Open the app. Use your TP-Link ID to log in. If
you don’t have a TP-Link ID, sign up first.

Note: If you forgot your login password, tap Forgot Password?.

The Deco app will guide you through the rest.

3. Identify your Deco

Choose your Deco model.

4

4. Choose an operation mode

5. Insert the SIM card and power on Deco

6. Connect to the Deco's Wi-Fi

Select 3G/4G Router.

Insert the SIM card into the slot at the bottom
of Deco. Then Power on the Deco.

Wait until the Wi-Fi Signal LED pulses blue,
then connect to the Deco's Wi-Fi using the
default SSID printed on the product label.

5

7. Select a location

8. Set up the SIM card

9. Create your Wi-Fi network

Select a location for Deco. If its location is not
listed, you can create a new one by choosing

Custom. This will be the name of your Deco.

Confirm or customize the SIM card
information. If you are not sure, contact your
ISP.

Set a network name and a password. These
will be the name and password you use to
connect your devices to Wi-Fi.

6

10. Connect to your Wi-Fi network

11. Setup complete

Connect your smartphone/tablet to the
Deco's Wi-Fi.

Your Deco network is now up. Connect all
devices to the network. You can also

More Decos

to expand the Wi-Fi coverage.

Add

7

Set Up Your Deco for Wireless Router Mode

When working in Wireless Router mode, Deco connects to the internet via an Ethernet cable. If you already have a modem or your internet comes via
an Ethernet cable from the wall, you can set the Deco as a regular wireless router to share the internet.

The intuitive Deco app guides you through an easy setup process that gets each unit up and all your devices connected and online. Follow the steps
below to set up your Deco for Wireless Router mode.

1. Download and install the Deco app

Scan the QR code below or go to Google
Play or the App Store to download the Deco
app. Install the app on your Android or iOS
smartphone or tablet.

or

2. Log in with TP-Link ID

Open the app. Use your TP-Link ID to log in. If
you don’t have a TP-Link ID, sign up first.

Note: If you forgot your login password, tap Forgot Password?.

The Deco app will guide you through the rest.

3. Identify your Deco

Choose your Deco model.

8

4. Choose an operation mode

5. Plug in and power on Deco

6. Connect to the Deco's Wi-Fi

Choose Wireless Router.

Power off your modem. Connect your Deco to
the modem and power them both on.

If you don't have a modem, connect the
Ethernet outlet directly to your Deco.

Wait until the Wi-Fi Signal LED pulses blue,
then connect to the Deco's Wi-Fi using the
default SSID printed on the product label.

9

7. Select a location

8. Set up internet connection

9. Create your Wi-Fi network

Select a location for the Deco. If its location
is not listed, you can create a new one by
choosing
your Deco.

Custom. This will be the name of

Select the internet connection type and enter
the information. If you are not sure, contact
your internet service provider.

Set a network name and a password. These
will be the name and password you use to
connect your devices to Wi-Fi.

10

10. Connect to your Wi-Fi network

11. Setup complete

Connect your phone/tablet to the Deco's Wi­Fi.

Your Deco network is now up. Connect
all devices to the Deco network. You can

Add More Decos to expand the Wi-Fi

also
coverage.

11

Install LTE External Antennas

When working in 3G/4G Router mode, you can install LTE external antennas (not included in the product package) manually to strengthen the LTE
signals of your Deco.

Before You Start

• Make sure your antennas frequency supports the working frequency of Deco X20-4G listed below.

Uplink (UL) operating band

E-UTRA Operating Band

1 1920 MHz – 1980 MHz 2110 MHz – 2170 MHz FDD
3 1710 MHz – 1785 MHz 1805 MHz – 1880 MHz FDD
5 824 MHz – 849 MHz 869 MHz – 894MHz FDD
7 2500 MHz – 2570 MHz 2620 MHz – 2690 MHz FDD

8 880 MHz – 915 MHz 925 MHz – 960 MHz FDD
20 832 MHz – 862 MHz 791 MHz – 821 MHz FDD
28 703 MHz – 748 MHz 758 MHz – 803 MHz FDD
38 2570 MHz – 2620 MHz 2570 MHz – 2620 MHz TDD
40 2300 MHz – 2400 MHz 2300 MHz – 2400 MHz TDD
41 2550 MHz – 2650 MHz 2550 MHz – 2650 MHz TDD

• Two SMB to SMA adapters are provided in the product package of your Deco. Make sure your antennas have the same connector type (

BS receive

UE transmit

FUL_low – FUL_high FDL_low – FDL_high

Downlink (DL) operating band

BS transmit

UE receive

Duplex Mode

SMA Male).

12

• Make sure your Deco is working at

3G/4G Router Mode. If not, open the Deco app and go to > Advanced > Operation Mode to switch the mode.

13

Follow the steps below to install your external antennas:

1. Remove the cover on the back of your Deco X20-4G.

1

2. Insert the provided SMB to SMA adapters to the External Antennas Ports, and then connect your LTE external antennas to the adapters.

Note: The image of antennas is for reference only and may differ from actual products. We cannot guarantee the performance while using any third-party LTE external antennas.

3

2

14

3. Open the Deco app, go to
instead of the internal ones.

> Advanced > External Antennas and enable External Antennas. When enabled, the Deco will use the external antennas

15

Add More Decos

After creating a Deco network, you can add more Deco units to the network to expand the Wi-Fi coverage and manage them easily on your Deco app.

1. In Overview, tap

.

2. Select the Deco model you want
to add, and follow app instructions
to complete the setup.

3. After the setup, you can find the added Deco units by tapping
Overview.

in

*The app screen depicted is for 3G/4G Router mode only and may differ when Deco works in different modes.

16

Dashboard

After you successfully set up your Deco network, you will see the dashboard of the Deco app. Here you can get an overview of the network status,
check the real-time network speed and data usage when Deco works in 3G/4G Router mode, customize your home network with enhanced security
using a kit of features built to TP-Link HomeShield and set up various advanced features.

Tap
status.

to get an overview of the network

Tap to enter the HomeShield page for
enhanced security.

Tap for more features.

*The app screen depicted is for 3G/4G Router mode only and may dier when Deco works in dierent modes.

17

Check Deco Status

In Overview, you can check the working status (online/offline) of all the Decos, check the details (speed/Deco's IP address & MAC address/connected
clients) of each Deco unit, change the Deco's location/name, and more.

Tap

to check all Decos' status.

Tap a Deco unit to check more details.

Check download/upload speed of the Deco.

*The app screen depicted is for 3G/4G Router mode

only and may dier when Deco works in dierent modes.

18

Change or customize the location/name of the Deco.

Check the clients connected to the Deco.

Enable the Mesh feature of a client so it can seamlessly switch to
the Deco that provides the fastest speed as you move around.

19

Set Main Deco

After setup, you can replace the main Deco with any satellite Deco without resetting and reconfigure the whole network.

Follow the steps below to complete the setup process.

Note: The main Deco links all the others to the internet. You need to connect the new main Deco to the modem or Ethernet outlet for internet connection. For DSL Deco, connect it to the phone jack or DSL

splitter. For 4G/5G Deco, insert a nano SIM card to it.

1. In Overview, tap

.

2. Tap > Set Main Deco.

3. Choose a satellite Deco and follow app
instructions to complete the settings.

*The app screen depicted is for 3G/4G Router

mode only and may dier when Deco works in
dierent modes.

20

Remove/Reboot Deco

You can remove or reboot your Deco easily in the Deco app. Follow the steps below.

Note: Removing a Deco will reset it to factory default settings and you will need to set up your Deco again. You can also press the Reset button on the Deco for 1 second to quickly reset your Deco to factory

default settings.

1. In Overview, tap

.

2. Select a Deco unit.

3. Tap

Note: If the LED light of Deco does not turn pulsing blue after tapping Remove, press the Reset

button on the Deco for 1 second to reset it.

to remove or reboot the Deco.

*The app screen depicted is for 3G/4G Router

mode only and may dier when Deco works in
dierent modes.

21

Create a New Network

In the Deco app, you can create different Deco networks with your TP-Link ID and manage them conveniently from the Deco app with one account. You
can also help family or friends manage their networks with your Deco app. Two methods are provided as below to create a new network.

Method 1. Create a new network from the Overview page

Tap

> Create New Network. Then follow app instructions to complete the setup.

*The app screen depicted is for 3G/4G Router mode only and may dier when Deco works in dierent modes.

22

Method 2. Create a new network from the Menu page

1. Tap

to open the menu.

2. Tap

> CREATE NEW NETWORK.

3. Follow app instructions to complete
the setup.

*The app screen depicted is for 3G/4G Router

mode only and may dier when Deco works in
dierent modes.

23

Delete a Network

You can delete a Deco network if you don't need it anymore. Deleting a Deco network will reset all Decos in this network to factory default settings.

1. In Overview, tap

.

2. Tap

> Delete.

*The app screen depicted is for 3G/4G Router

mode only and may dier when Deco works in
dierent modes.

24

Data Settings (for 3G/4G Router Mode)

Data Settings is used to monitor the data usage of your Deco in real-time. You can limit your data usage according to your monthly allowance or total
allowance and you will receive a warning if your data usage reaches the specified level.

Note: It is not available to modify the data settings when remotely managing the network from Deco app.

1. In Overview, tap the

Tip: You can also go to MORE > Advanced > Data Settings to enter the Data Settings page.

Network card to enter the Data Settings page.

2. Set the data usage type as

Monthly or Total.

3. Correct the total/monthly used data
manually if the data is inaccurate.

*The app screen depicted is for 3G/4G Router mode only and may dier when Deco works in dierent modes.

25

4. Enable
total/monthly data allowance and
usage alert to prevent data overuse.

Data Usage Limit to set

5. Enter the allowed amount of total/
monthly data. When data usage
exceeds the allowed level, the Deco
will disconnect from the internet.

6. Choose a notification method if
you want to receive a warning when
data usage reaches the allowed
level.

7. Choose a data percentage to
prevent data overuse.

26

Manage Connected Devices

In Overview, you can mange your connected devices easily, such as changing the device name and type, enabling Mesh Technology and high priority,
and setting a profile to manage its online activities, and more.

Tap a connected device to check the details (eg. real-time upload/
download speeds).

Change the device name as needed.

*The app screen depicted is for 3G/4G Router mode only and may dier when Deco works in
dierent modes.

27

Enable
of this device during the time, such as a family member’s laptop for one
hour during a video call.

High Priority and set the Duration time to prioritize the connection

Tap to manage the device settings, including changing the device
name/type, viewing device detailed information (IP address, MAC
address, connected network, linked Deco, etc.), and more.

28

Enable
device can seamlessly switch to the
Deco that provides the fastest speed
as you move around.

Mesh Technology and then the

Tap Belongs to to add a unique profile for the device and manage its online activities. For example, when
and for how long this device can access the internet, block inappropriate content, and pause the internet if
necessary. For more information about the feature, refer to

HomeShield.

29

HomeShield

Whether protecting your network from malicious attacks, managing your family's online activities, or prioritizing devices to get better performance,
TP-Link HomeShield provides you a kit of basic (free) and Pro (charged) features to enhance your whole home network with enhanced security.
An overview of HomeShield features are shown below.

• What is HomeShield:

• How to use HomeShield features and upgrade to HomeShield Pro: go to the product support page at https://www.tp-link.com and refer to

TP-Link HomeShield User Guide.

https://www.tp-link.com/homeshield/

Weekly/Monthly Reports: Review a weekly or a monthly list of usage, such as security threats, top visited contents, and
more, to better manage your family’s online activities.

HomeShield Pro Subscription: To enjoy more features, you can upgrade to HomeShield Pro.

Scan: Examine your network regularly to identify the potential risks, thus improving your network performance and

security.

Real-Time Protection: Real-Time Protection is for Pro users only. There are three ways to ensure your home network
and your IoT devices remain safe: (1) block malicious websites, protect your home network and applications against
external attacks and eliminate vulnerabilities; (2) prevent infected devices from sending sensitive information or security
threats to clients outside your network; (3) identify IoT devices and immediately monitor their security performance
once they join the network.

Parental Controls: Create proles for family members and specify the devices that belong to each. Set individualized

parental controls including when and for how long each person can access the internet. Block inappropriate content
and pause the internet if necessary.

QoS: Prioritize the connection of a particular device for a set duration, such as a family member’s laptop for one hour
during a video call.

30

Wi-Fi Settings

You can change the network name and password of your main network at any time and share the network easily with family and friends.

Tap > Wi-Fi.

Manage main network (eg. change your main network's Wi-Fi name and
password, hide the network from Wi-Fi list, etc.).

Share your network with others.

*The app screen depicted is for 3G/4G Router

mode only and may dier when Deco works in
dierent modes.

31

Guest Network

You can create and share a separate network for guests to guarantee the security and privacy of your main network.

Tap

> Wi-Fi and enble Guest Network.

Set a Wi-Fi name and password for
the guest network.

Share your guest network with others.

*The app screen depicted is for 3G/4G Router mode only and may dier when Deco works in
dierent modes.

32

SMS Service (for 3G/4G Router Mode)

When Deco works in 3G/4G Router mode, you can view, send and receive messages with the SMS Service in the Deco app.

View inbox and outbox messages.

Create new messages. Reply messages.Tap > SMS.

*The app screen depicted is for 3G/4G Router mode only and may dier when Deco works in dierent modes.

33

Blacklist

Add devices to the blacklist to prevent the devices from accessing your network, ensuring the safety of your personal information shared in the
network.

Tap

> Blacklist.

+ in the top right corner and add clients or other devices to the

Tap
blacklist.

Remove devices/clients from blacklist.

*The app screen depicted is for 3G/4G Router

mode only and may dier when Deco works in
dierent modes.

34

Upgrade Your Deco

TP-Link is dedicated to improving product features and providing a better customer experience. An up-to-date rmware provides better and stabler
network performance. Always update your Deco to the latest rmware version when prompted in the Deco app.

1. Tap > Update Deco.

2. Download and install the rmware (if any) and follow app instructions to update

your Deco to the latest version.

*The app screen depicted is for 3G/4G Router

mode only and may dier when Deco works in
dierent modes.

35

Internet Settings (for 3G/4G Router Mode)

When Deco works in 3G/4G Router mode, you can congure the internet settings, including updating or creating your ISP prole, enabling/disabling

mobile data and data roaming, changing a network mode, and more.

Note: It is not available to change the internet settings when remotely controlling the network from the Deco app.

Tap

> Advanced > Internet.

Tap Mobile ISP to update your ISP profile or create a new one.

*The app screen depicted is for 3G/4G Router mode only and may dier when Deco works in dierent modes.

36

Enable Mobile Data to ensure
internet access.

Enable Data Roaming to ensure the
internet access while you are outside
the service area of your carrier.

Change the mobile network mode
(4G Preferred / 4G Only / 3G Only)
according to your needs.

Select frequency bands manually
or automatically.

37

Select preferred carrier network
mannually or automatically.

Check internet detailed information.

38

PIN Management (for 3G/4G Router Mode)

While Deco works in 3G/4G Router mode, a SIM card is inserted to it for internet access. To protect your SIM card from embezzlement, PIN
Management is available in the Deco app. When enabled, PIN code is required when you reboot the Deco or reinsert the SIM card to it.

Note: This feature is available only when your Deco works in 3G/4G Router mode, but is not available when Deco works in 3G/4G Router mode and being remotely controlled from the Deco app.

1. Tap

> Advanced > PIN Management.

2. Enable PIN Code and set a PIN code for SIM card unlock. Then the PIN code
is required every time you reboot the Deco or reinsert the SIM card to it.

Note: If you enter the wrong PIN code too many times, your SIM card will be automatically locked. Contact

your carrier for help if your SIM card is locked.

*The app screen depicted is for 3G/4G Router mode only and may dier when Deco works in dierent modes.

39

3. Tap
to enter the current PIN before you set a new one.

Change PIN whenever you want to set a new PIN code. You need

4. Enable
automatically every time you reboot the router or reinsert the
SIM card.

Auto-Unlock PIN, then the PIN code will be validated

40

Advanced Features

Additional features are available under the Advanced menu. The features vary with the working mode of Deco. For example, you can modify the mobile
ISP settings only when your Deco is in 3G/4G Router mode, and modify WAN settings only in Wireless Router mode. Follow the instructions to explore

dierent features.

Note: When Deco works in 3G/4G Router mode and being remotely controlled from the Deco app, Internet Settings, PIN Management, Data Settings, and External Antennas are not available. When Deco

works in Wireless Router mode and being remotely controlled from the Deco app, IPv4, IPv6, VLAN/IPTV, 3G/4G Backup and Oine Detection are not available.

Tap

> Advanced.

View IPv4 details or change the
internet connection type.

Note: This feature is available only when your

Deco works in Wireless Router mode.

Enable IPv6 to set up an IPv6
internet connection.

Note: This feature is available only when your

Deco works in Wireless Router mode.

Add IPv6 firewall rules to allow
specific devices to access the
specified services.

Note: This feature is available only when your

Deco works in Wireless Router mode.

The app screen depicted is for 3G/4G Router

*

mode only and may dier when Deco works in
dierent modes.

41

Modify LAN IP to avoid IP address
confict.

Note: This feature is not available only when

your Deco works in Access Point mode.

Change DHCP Server settings.

Note: This feature is not available only when your

Deco works in Access Point mode.

Enable IPTV/VLAN mode to support
IPTV services.

Note: This feature is available only when your

Deco works in Wireless Router mode.

Enable MAC Clone if Deco fails to
connect to the internet.

Tip: For more about MAC Clone, refer to

https://www.tp-link.com/support/faq/2925/

Note: This feature is available only when your

Deco works in Wireless Router mode.

42

Reserve IP addresses for specic

devices to recognize and manage
the device more easily.

Note: This feature is not available only when your

Deco works in Access Point mode.

Set up port forwarding rules to
enable devices in your network
accessible over the internet with
safety.

Note: This feature is not available only when your

Deco works in Access Point mode.

Register a TP-Link DDNS domain
name to access your router and
local servers using a domain name.

Note: This feature is not available only when your

Deco works in Access Point mode.

Enable SIP ALG to communicate
with SIP (Session Initiation Protocol)
servers via NAT).

Note: This feature is not available only when your

Deco works in Access Point mode.

43

Enable UPNP to allow your local
network to dynamically open ports
for applications like gaming.

Note: This feature is not available only when

your Deco works in Access Point mode.

Enable Fast Roaming to allow
your wireless devices to switch
connection to different Decos.

Enable Beamforming to
concentrate Wi-Fi signal towards
connected devices for stronger
connections.

Toggle o LED to turn o the light
on Deco. Congure the Night Mode
to turn o the LED light at bedtime

only.

44

Change the operation mode.

Tip: You can enable 3G/4G Backup when you

switch the network to Wireless Router mode. Refer

3G/4G Backup (for Wireless Router Mode) for

to
details.

Enable to use external antennas
instead of the internal ones.

Note:

This feature is available only when Deco works
in 3G/4G mode. Make sure you have installed
two external antennas to ensure that Deco's LTE

network works properly.

Set connection alerts to receive

notications once the clients

connect to or disconnect from Deco.

Set notications to receive alerts in
the notication bar.

45

3G/4G Backup (for Wireless Router Mode)

When Deco works in Wireless Router mode, you can use 3G/4G network as a backup solution for internet access. When 3G/4G Backup is enabled, your
Deco will be directly connected to the 3G/4G network when your original network service fails.

Follow the steps below to enable 3G/4G Backup and congure the corresponding settings.

Note: When Deco works in Wireless Router mode and being remotely controlled from the Deco app, 3G/4G Backup and Oine Detection are not available.

Tap

> Advanced > Operation Mode > 3G/4G Backup and enable 3G/4G Backup.

*The app screen depicted is for 3G/4G Router mode only and may dier when Deco works in dierent modes.

46

Select detection methods (single
detection with DNS Lookup or dual
detection with DNS Lookup and
Ping) which determine when the
network is disconnected and the

backup takes eect.

Congure internet settings for your

SIM card (eg. modify mobile ISP
information and network mode,

turn on/o mobile data and data

roaming, select frequency bands
and preferred carrier network etc.).

Congure data usage settings

(eg. select data usage type, adjust
total/monthly used data, set the
allowance for total/monthly data
usage, set the usage alerts, etc.).

View, send, receive and reply
messages via the SMS Service.

47

Set a PIN code to protect the SIM
card from embezzlement. When
enabled, PIN code is required when
you use the SIM card in any device.

48

WPS

WPS (Wi-Fi Protected Setup) helps you to quickly and securely connect a client to the network with a tap without entering any password.

1. Tap

> WPS.

2. Tap the
on your client.

WPS icon in Deco app and then

3. Your client has connected to the network
successfully if shown as below.

*The app screen depicted is for 3G/4G Router

mode only and may dier when Deco works in
dierent modes.

49

Managers

Add friends and family members to help manage your network. Each manager should have their own TP-Link ID.

Note: Managers can not modify owner's account, add other accounts, or set manager privileges.

Tap

> Managers, and follow app instructions to add other TP-Link ID account as manager.

*The app screen depicted is for 3G/4G Router mode only and may dier when Deco works in dierent modes.

50

Set privileges for managers.

Note: Privileges may vary slightly depending on the model, the current operation mode, and

software version you have.

Remove managers.

51

Control Your Deco with Alexa

Alexa Integration allows you to control your Deco using Amazon’s Alexa voice service. You can control and customize your home network by giving

simple voice commands to Alexa, such as enabling the Guest Network, turning o your Deco LEDs, and more.

Follow the steps below to use Alexa voice commands to control your Deco network.

Tip: To know more about how to set up Alexa Integration in Alexa app, refer to https://www.tp-link.com/support/faq/1571/.

Note: This feature is currently available in English (US), English (UK), German and Japanese.

In the Deco app, tap

to open the menu, tap Friends of Deco > Alexa > TP-Link Router Skill, then follow the app instructions complete the setup.

*The app screen depicted is for 3G/4G Router mode only and may dier when Deco works in dierent modes.

52

Troubleshooting

Solutions to common problems during setup or use are provided here for reference. Follow the steps and the provided link below to diagnose and solve
problems you might experience with your Deco.

If problems still exist, contact us:

Q1. What should I do if I fail to connect to the internet over the mobile connection?

• Verify that your SIM card is an LTE or WCDMA card.

• Make sure that the nano SIM card is inserted correctly into Deco and the Deco is operating in 3G/4G Router mode.

• Check with your ISP to ensure that your SIM card is in your ISP’s service area.

• Check with your ISP to ensure that your 3G/4G mobile plan is available.

• Move your Deco to a dierent location such as closer to the window or door to see whether it gets better signal strength.

• Launch the Deco app, go to
Total/Monthly Data Usage Limit to

• Launch the Deco app, go to

• Conrm with your ISP if you are in a roaming service area. If you are, go to

Q2. What should I do if I fail to congure the satellite Deco and get stuck on “We couldn't nd another Deco”?

• For Deco which is operating in 3G/4G Router mode and set as the main Deco, disconnect the Ethernet cable (if any) connected to the front-end
router with DHCP Server function from the Deco’s Ethernet port and try again. If it doesn't work, try the following guide.

https://www.tp-link.com/support

Advanced > Data Settings to verify if the Total/Monthly Used exceeds the Total/Monthly Data Usage Limit. If it does, set

0(zero), or disable Total/Monthly Data Usage Limit.

Advanced > Internet to verify Mobile Data is enabled.

Advanced > Internet in the Deco app to verify Data Roaming is enabled.

• Refer to the guide

Q3. What should I do if I fail to congure the main Deco and get stuck on “Testing Internet Connection”?

• Refer to the video https://youtu.be/OSUrGdWH-i0

https://www.tp-link.com/support/faq/1447/ or video https://youtu.be/iVgDzoo16T4

53

• Follow Q5 and try again.

Q4. What should I do if my wireless devices cannot connect to Deco?

Refer to

Q5. What should I do if Deco suddenly lost internet access?

• For Deco which is operating in 3G/4G Router mode and set as the main Deco, disconnect the Ethernet cable (if any) connected to the front-end

• Visit

https://www.tp-link.com/support/faq/2718/

router with DHCP Server function from the Deco’s Ethernet port and try again. If it doesn't work, try the following guide.

192.168.68.1 on a web browser and log in with your TP-Link ID. Tap Internet and check the Internet IP Address.

If the Interent IP address is not 0.0.0.0, try the following methods:

1) Make sure that the SIM card is working stably when it’s inserted in your phone at the same place or conrm with your ISP that the SIM is working

properly.

2) Launch the Deco app and go to

If the Internet IP address is

1) Check with your ISP to make sure that your SIM card supports the network type which your Deco supports. Also, make sure the SIM card works

properly when it’s inserted to your phone.

0.0.0.0, try the following methods:

> Advanced > DHCP Server, change the Primary DNS to 8.8.8.8, and change the Secondary DNS to 8.8.4.4.

54

2) Contact your ISP to get the PIN Code of your SIM card , then go to > Advanced > PIN Management > PIN Code on the Deco app to fill it in.

3) Launch the Deco app, go to

Q6. How can I nd a suitable spot for my Deco?

Refer to https://www.tp-link.com//support/faq/1446/

Q7. What can I do if the Deco app isn't working properly?

Refer to

https://www.tp-link.com/support/faq/1456/

> Advanced > Internet > Mobile ISP to create a new profile. Contact your ISP for the necessary information.

55

Authentication

CE Mark Warning

This is a class B product. In a domestic environment, this product may cause radio interference, in which case the user may be required to take
adequate measures.

OPERATING FREQUENCY(the maximum transmitted power)

2412MHz—2483.5MHz (20dBm)

5150MHz—5250MHz (23dBm)

WCDMA: B1/B5/B8 (24dBm+1.7/-3.7dB)

LTE: B1/B3/B5/B7/B8/B20/B38/B40/B41 (23dBm±2.7dB)

LTE: B28 (23dBm+2.7/-3.2 dB)

EU declaration of conformity

TP-Link hereby declares that the device is in compliance with the essential requirements and other relevant provisions of directives 2014/53/EU,
2009/125/EC, 2011 /65/EU and (EU) 2015/863.

The original EU declaration of conformity may be found at https://www.tp-link.com/en/support/ce/

RF Exposure Information

This device meets the EU requirements (2014/53/EU Article 3.1a) on the limitation of exposure of the general public to electromagnetic fields by way
of health protection.

The device complies with RF specifications when the device used at 20 cm from your body.

56

National restrictions

Attention: This device may only be used indoors in all EU member states and EFTA countries, and Northern Ireland.

AT BE BG CH CY CZ DE DK

EE EL ES FI FR HR HU IE

IS IT LI LT LU LV MT NL

NO PL PT RO SE SI SK UK(NI)

UKCA Mark

UKCA declaration of conformity

TP-Link hereby declares that the device is in compliance with the essential requirements and other relevant provisions of the Radio Equipment
Regulations 2017.

The original UKCA declaration of conformity may be found at https://www.tp-link.com/support/ukca

National restrictions

Attention: This device may only be used indoors in Great Britain.

UK

Canadian Compliance Statement

This device complies with Industry Canada license-exempt RSS standard(s). Operation is subject to the following two conditions:

1. This device may not cause interference, and

2. This device must accept any interference, including interference that may cause undesired operation of the device.

57

Le présent appareil est conforme aux CNR d’Industrie Canada applicables aux appareils radio exempts de licence. L’exploitation est autorisée aux
deux conditions suivantes :

1. l’appareil ne doit pas produire de brouillage;

2. l’utilisateur de l’appareil doit accepter tout brouillage radioélectrique subi, meme si le brouillage est susceptible d’en compromettre le

fonctionnement.

Caution:

The device for operation in the band 5150–5250 MHz is only for indoor use to reduce the potential for harmful interference to co-channel mobile
satellite systems;

Avertissement:

Le dispositif fonctionnant dans la bande 5150-5250 MHz est réservé uniquement pour une utilisation à l’intérieur afin de réduire les risques de
brouillage préjudiciable aux systèmes de satellites mobiles utilisant les mêmes canaux;

Radiation Exposure Statement:

This equipment complies with IC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated
with minimum distance 20cm between the radiator & your body.

Déclaration d’exposition aux radiations:

Cet équipement est conforme aux limites d’exposition aux rayonnements IC établies pour un environnement non contrôlé. Cet équipement doit être
installé et utilisé avec un minimum de 20 cm de distance entre la source de rayonnement et votre corps.

Industry Canada Statement

CAN ICES-3 (B)/NMB-3(B)

Korea Warning Statements:

당해 무선설비는 운용중 전파혼신 가능성이 있음.

58

NCC Notice & BSMI Notice:

注意！

取得審驗證明之低功率射頻器材，非經核准，公司、商號或使用者均不得擅自變更頻率、加大功率或變更原設計之特性及功能。

低功率射頻器材之使用不得影響飛航安全及干擾合法通信；經發現有干擾現象時，應立即停用，並改善至無干擾時方得繼續使用。

前述合法通信，指依電信管理法規定作業之無線電通信。

低功率射頻器材須忍受合法通信或工業、科學及醫療用電波輻射性電機設備之干擾。

應避免影響附近雷達系統之操作。

安全諮詢及注意事項

•請按照本產品注明的電源類型使用本產品。

•清潔本產品之前請先切斷電源。請勿使用液體、噴霧清潔劑或濕布進行清潔。

•注意防潮，請勿將水或其他液體潑灑到本產品上。

•插槽與開口供通風使用，以確保本產品的操作可靠並防止過熱，請勿堵塞或覆蓋開口。

•請勿將本產品置放於靠近熱源的地方。除非有正常的通風，否則不可放在密閉位置中。

•不要私自拆開機殼或自行維修，如產品有故障請與原廠或代理商聯繫。

限用物質含有情況標示聲明書

設備名稱：

Equipment name:

AX1800 Whole Home Mesh Wi-Fi 6 Router

單元

Unit

PCB

型號（型式）：

Type designation (Type)

Deco X20-4G

限用物質及其化學符號

Restricted substances and its chemical symbols

鉛

Lead

(Pb)

汞

Mercury

(Hg)

鎘

Cadmium

(Cd)

六價鉻

Hexavalent

chromium

(Cr+6)

多溴聯苯

Polybrominated

biphenyls

(PBB)

多溴二苯醚

Polybrominated

diphenyl ethers

(PBDE)

○ ○ ○ ○ ○ ○

59

外殼

電源供應器

其他及其配件

備考1.超出0.1wt%”及“超出0.01wt%”系指限用物質之百分比含量超出百分比含量基準值。

Note 1：“Exceeding 0.1 wt %” and “exceeding 0.01 wt %” indicate that the percentage content of the restricted substance exceeds the

reference percentage value of presence condition.

備考2.“○”系指該項限用物質之百分比含量未超出百分比含量基準值。

Note 2：“○” indicates that the percentage content of the restricted substance does not exceed the percentage of reference value of presence.

備考3.“−”系指該項限用物質為排除項目。

Note 3：The “−” indicates that the restricted substance corresponds to the exemption.

○ ○ ○ ○ ○ ○

−

−

○ ○ ○ ○ ○
○ ○ ○ ○ ○

Продукт сертифіковано згідно с правилами системи УкрСЕПРО на відповідність вимогам нормативних документів та вимогам,
що передбачені чинними законодавчими актами України.

Safety Information

• Keep the device away from water, fire, humidity or hot environments.

• Do not attempt to disassemble, repair, or modify the device. If you need service, please contact us.

• Do not use damaged charger or USB cable to charge the device.

• Do not use any other chargers than those recommended.

• Do not use the device where wireless devices are not allowed.

• Adapter shall be installed near the equipment and shall be easily accessible.

• Operating Temperature: 0°C~40°C (32°F~104°F)

• Storage Temperature: -40°C~60°C (-40°F~140°F)

60

• Operating Humidity: 10%~90%RH, Non-condensing

• Storage Humidity: 10%~90%RH, Non-condensing

Please read and follow the above safety information when operating the device. We cannot guarantee that no accidents or damage will occur due to
improper use of the device. Please use this product with care and operate at your own risk.

Explanation of the symbols on the product label

Symbol Explanation

DC voltage
Caution
Operator’s manual

Indoor use only

RECYCLING
This product bears the selective sorting symbol for Waste electrical and electronic equipment (WEEE). This means
that this product must be handled pursuant to European directive 2012/19/EU in order to be recycled or dismantled to
minimize its impact on the environment.
User has the choice to give his product to a competent recycling organization or to the retailer when he buys a new
electrical or electronic equipment.

61