TP-Link Archer D9 Quick Installation Guide
Quick Installation Guide
AC1900 Wireless Dual Band Gigabit
ADSL2+ Modem Router
Connecting the Hardware
If you don’t need the phone service, just directly connect the modem router to the phone jack with a phone cable, then follow steps 3 and 4 to complete the hardware connection.
Modem Router
Phone Jack
1 Connect the ADSL splitter to the phone jack.
ADSL Splitter
4 Verify that the hardware connection is correct by checking these LEDs.
Power On ADSL On 2.4GHz On 5GHz On
Note:
1.The ADSL LED 
takes about 1 to 2 minutes to stabilize.
2.If the 2.4GHz LED 
and 5GHz LED 
are o , please press the Wi-Fi button on the rear panel for 2 seconds, then check the LEDs again in a few seconds.
Power Adapter
(Optional)
Con guring the Modem Router
1.Connecting your computer to the modem router (Wired or Wireless)
Wired
Turn o the Wi-Fi on your computer and connect the devices as shown below.
Ethernet Cable
Wireless
a.Find the SSID (network name) and Wireless Password printed on the product label at the bottom of the modem router.
b.Click the network icon of your computer or go to Wi-Fi Setting of your smart device, then select the SSID to join the network.
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Connections are available |
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< Settings |
Wi-Fi |
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Wi-Fi |
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Wireless Network Connection |
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OR |
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CHOOSE A NETWORK... |
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TP-LINK_XXXX |
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TP-LINK_XXXX_5G |
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TP-LINK_XXXX |
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√ Connect automatically |
Connect |
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TP-LINK_XXXX_5G |
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Computer |
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Other... |
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Smart Device |
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2. Con guring the modem router via a web browser
ALaunch a web browser and type in http://tplinkmodem.net or 192.168.1.1.
Create a new password (1-15 characters) and click Save.
Note: If the login page does not appear, please refer to FAQ > Q1.
http://tplinkmodem.net
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New Password |
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Low |
Middle |
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Confirm Password |
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Save |
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| <![if ! IE]> <![endif]>7106506053REV2.1.0 LINK-TP©2016 |
B |
Enter the new password that you created and click Log in. |
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Note: For subsequent logins, use your password you have created. |
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CFollow the step-by-step instructions of the Quick Setup to complete the initial con guration.
Note: For advanced settings, please refer to the User Guide on TP-LINK o cial website at www.tp-link.com.
USB Features
Use the USB port for media sharing, storage sharing and printer sharing across your local network. You can also setup an FTP server to access your files remotely through the Internet.
RESET
USB 2.0
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USB |
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2.0 |
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USB |
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3.0 |
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Remote Access |
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Local Storage |
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Media Sharing |
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Printer Sharing |
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via FTP Server |
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Sharing |
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To learn more about the USB features, visit http://tp-link.com/app/usb/ or simply scan the QR code.
Tether App
TP-LINK Tether app lets you conveniently access the modem router and: 
View information about the clients on your network.
Block network access from specific users or devices.
Set up Parental Controls with access time.
Change the basic wireless network settings easily.
How to begin?
1.Scan the QR code and download the TP-LINK Tether App from the 
Apple App Store or Google Play.
2.Ensure your smart device is wirelessly connected to your home network.
3.Launch the Tether app and start managing your home network.
LED Indicators
LED |
Status |
Indication |
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On |
System initialization complete. |
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(Power) |
Flashing |
System initializing or firmware upgrading is in process. Do not disconnect |
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or power o the modem router. |
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O |
Power is o . |
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On |
ADSL line is synchronized and ready to use. |
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(ADSL) |
Flashing |
The ADSL negotiation is in progress. |
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O |
ADSL synchronization failed. |
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(Internet) |
On |
Internet connection is available. |
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O |
No Internet connection or the modem router is operating in Bridge mode. |
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(Wireless |
On |
The 2.4GHz wireless radio band is enabled. |
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2.4GHz) |
O |
The 2.4GHz wireless radio band is disabled. |
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(Wireless |
On |
The 5GHz wireless radio band is enabled. |
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5GHz) |
O |
The 5GHz wireless radio band is disabled. |
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On/O |
Turns On when a WPS synchronization is established and automatically turns |
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(WPS) |
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O about five minutes later. |
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Slow Flashing |
A wireless device is trying to connect to the network via WPS. This process |
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may take up to 3 minutes. |
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(LAN) |
On |
At least one LAN port is connected. |
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O |
No LAN port is connected. |
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On |
The USB device is identified and ready to use. |
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(USB) |
Flashing |
The USB device is being identified. |
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O |
No USB device is plugged into the USB port. |
FAQ (Frequently Asked Questions)
Q1. What can I do if the login page does not appear?
A1. If the computer is set to a static or fixed IP address, change it to obtain an IP address automatically from the modem router.
A2. Verify http://tplinkmodem.net is correctly entered in the web browser and press Enter. A3. Use another web browser and try again.
A4. Reboot your modem router and try again.
A5. Disable and enable the active network adapter.
Q2. What can I do if I cannot access the Internet?
A1. Make sure the telephone and Ethernet cables are plugged in correctly.
A2. Try to log into the web management page of the modem router using the default address at http://tplinkmodem.net. If you can, try the following answers. If you cannot, change your computer to obtain an IP address automatically from the modem router.
A3. Consult your ISP and make sure all the VPI/VCI, Connection Type, account username and password are correct. If they are not, please replace them with the correct settings and try again.
A4. Restore the modem router to its factory default settings and reconfigure the modem router by following the instructions in this Quick Installation Guide.
A5. Please contact our Technical Support if the problem still exists.
Q3. How do I restore the modem router to its factory default settings?
A1. With the modem router powered on, use a pin to press and hold the RESET button on the side panel of the modem router for 8 seconds until all LEDs turn back on momentarily, then release the button.
A2. Log into the web management page of the modem router, and go to Advanced > System Tools > Backup & Restore, click
Factory Restore and wait until the reset process is complete.
RESET
USB 2.0
RESET Button Press & Hold 8 seconds
Q4. What can I do if I forget my password?
Web Management page password:
Restore the modem router to its factory default settings and then create a new password using 1-15 characters.
Wireless Network password:
A1. The default Wireless Password/PIN is printed on the product label of the modem router.
A2. If the default wireless password has been changed, log into the modem router's web management page and go to Basic > Wireless to retrieve or reset your password.
Q5. What can I do if the ADSL LED
does not turn solid on?
A1. Check your cables and make sure they are all plugged in correctly, including the telephone lines and power adapter.
A2. Manually change your DSL settings. Log into the modem router’s web management page. Go to Advanced > Network > DSL Settings, change the DSL Modulation Type to G.dmt, and click Save. You will be prompted a disconnection, and click Yes to continue. If this cannot work, try to change the DSL Modulation Type to ADSL2.
A3. Restore your modem router to its factory default settings.
A4. Remove the ADSL splitter, directly connect the modem router to the phone jack and then reconfigure the modem router by following the instructions in this Quick Installation Guide.
A5. Contact your ISP to verify if the ADSL line is in good status.
A6. If you have tried all the suggestions above and the problem still exists, contact our Technical Support.
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