Thank you for purchasing this NETGEAR product. You can visit www.netgear.com/support to register your product, get help,
access the latest downloads and user manuals, and join our community. We recommend that you use only official NETGEAR
support resources.
Conformity
For the current EU Declaration of Conformity, visit http://kb.netgear.com/app/answers/detail/a_id/11621.
Compliance
For regulatory compliance information, visit http://www.netgear.com/about/regulatory.
See the regulatory compliance document before connecting the power supply.
The modem router provides you with an easy and secure way to set up a WiFi home network
with fast Internet access through a coaxial cable and two VoIP telephone lines. The modem
router battery (sold separately) provides up to five hours of talk time and eight hours or idle time
for voice service during a power outage.
The modem router delivers combined WiFi connection speeds. High-powered amplifiers with
antennas provide WiFi coverage anywhere around your home, inside or out.
To set up your new modem router, use the installation guide. This chapter provides supplemental
information that can help you with the setup.
This chapter contains the following sections:
•Package Contents
•Front Panel
•Top Panel WPS Button
•Rear Panel
•Product Label
•Install an Optional Battery
•Replace the Battery
•Position Your Modem Router
•Install and Activate Your Modem Router
7
AC1900 Cable Modem Voice Router
Package Contents
Your package includes the following items.
Modem router
Power cord
Phone cable
Ethernet cable
Quick start gude
Figure 1. Package contents
Front Panel
The front panel contains status LEDs. Use the LEDs to verify status and connections.
Power LED
DS/US LED (downstream and upstream)
Online LED
2.4 GHz WiFi LED
5 GHz WiFi LED
Tel (voice) port 1 LED
Tel (voice) port 2 LED
Battery LED
Figure 2. Front panel LEDs
Hardware Overview
8
AC1900 Cable Modem Voice Router
You can use the LEDs to verify status and connections. The following table lists and
describes each LED and the WPS button on the front panel.
Table 1. Front panel LEDs and button of the modem router
LEDIconDescription
Power
DS/US
Online
2.4 GHz WiFi
5 GHz WiFi
• Solid white. The modem router is receiving power and is functioning normally.
• Off.
• Solid white. One or more downstream channels are locked.
• Slow
• Fast
• Off.
• Solid white. The modem router is connected to the Internet.
• Blinking.
• Off.
• Solid white. The 2.4 GHz WiFi radio is functioning and available for use.
• Slow
• Fast
• Off.
• Solid white. The 5 GHz WiFi radio is functioning and available for use.
• Slow blinking.
• Fast
• Off.
The modem router is not receiving power.
blinking. Downstream locking is in progress.
blinking. Upstream locking is in progress.
No downstream channel is locked.
The modem router is downloading a configuration file from the cable
provider’s CMTS.
The modem router is not connected to the Internet.
blinking. At least one computer or WiFi device is connected to the 2.4
GHz network or someone pressed the WPS button.
blinking. At least one computer or WiFi device is sending or receiving
data on the 2.4 GHz network.
The 2.4 GHz WiFi radio is disabled. (If the radio is disabled, see Control
the WiFi Radios on
network or someone pressed the WPS button.
blinking. At least one computer or WiFi device is sending or receiving
data on the 5 GHz network.
The 5 GHz WiFi radio is disabled. (If the radio is disabled, see Control the
WiFi Radios on
page 83.)
At least one computer or WiFi device is connected to the 5 GHz
page 83.)
Tel (voice)
port 1 and
Tel (voice)
port 2
Battery
• Solid white. The telephone line is provisioned and ready to use.
• Slow blinking. Registration is in progress for the telephone line or the phone is
of
f the hook.
• Off.
• Solid white. The battery is charged.
• Fast
• Off.
The telephone line is not registered or is not provisioned.
blinking. The battery power is low, or the modem router detected a
grounding error or a problem with the voltage.
The battery is not working.
Hardware Overview
9
AC1900 Cable Modem Voice Router
Top Panel WPS Button
The WPS button is on the top panel.
WPS button
Press the WPS button to connect to the WiFi network without typing the WiFi password.
For more information about using WPS, see WiFi Connection on page 18.
Rear Panel
The rear panel contains ports, connectors, and a recessed button.
Reset button
USB ports (2)
Voice ports (2)
Ethernet LAN ports (4)
Coaxial cable connector
Power input
Figure 3. Rear panel connections and button
The rear panel contains the following components, viewed from top to bottom:
•Reset
button. To set the modem router to the original factory settings, press and hold the
Reset button for at least seven seconds. For more information, see Factory Settings on
page 123.
Hardware Overview
10
AC1900 Cable Modem Voice Router
•USB ports. The USB ports lets you connect a USB hard drive, flash drive, or printer to the
modem router.
•T
el (voice) ports. Connect Voice over IP (VoIP) telephone lines.
•Four Ethernet LAN ports.
These ports support 1000 Mpbs, 100 Mpbs, and 10 Mpbs
connections. Use the Ethernet LAN ports to connect local computers to the modem
router’s Ethernet LAN.
•Coaxial cable connector.
Attach a coaxial cable to the cable service provider’s
connection.
•Power input connector.
Attach the power cord to this input.
Product Label
The label on the modem router shows the login information, MAC addresses, serial number,
WiFi network names, and WiFi password (key).
CM MAC address
EMTA MAC address
Serial number
WiFi network name (SSID)
WiFi network password
Figure 4. Modem router label
Hardware Overview
11
AC1900 Cable Modem Voice Router
Install an Optional Battery
A battery is not included with the modem router, but you can purchase a NETGEAR modem
router battery (sold separately) and install it. The battery can give you five hours of additional
talk time and eight hours of idle time for voice service during a power outage. Battery access
is on the bottom of the modem router.
To install the battery:
1. Make
2. Open
3. Insert
Do not attempt to remove the battery’s plastic tab. The plastic tab allows you to easily
remove the battery later if it must be replaced.
4. Close the battery compartment door.
sure that the modem router is unplugged.
the battery compartment door.
the battery into the modem router.
Replace the Battery
Battery access is on the bottom of the modem router.
To replace the battery:
1. Unplug
2. Open
3. Pull
4. Insert
the modem router.
the battery compartment door.
the plastic tab to remove the battery.
the replacement battery and close the battery compartment door.
Hardware Overview
12
AC1900 Cable Modem Voice Router
Position Your Modem Router
The modem router lets you access your network from anywhere within the operating range of
your WiFi network. However, the operating distance or range of your WiFi connection can
vary significantly depending on the physical placement of your modem router. For example,
the thickness and number of walls the WiFi signal passes through can limit the range.
For best results, place your modem router according to the following guidelines:
•Place your modem router on an upper floor of a multifloor home or office.
•Place your modem router near the center of the area where your computers and other
devices operate, and within line of sight to your WiFi devices.
•Make sure that the modem router is within reach of an AC power outlet and near Ethernet
cables for wired computers.
•Place the modem router in an elevated location, minimizing the number walls and ceilings
between the modem router and your other devices.
•Place the modem router away from electrical devices such as these:
-Ceiling fans
-Home security systems
-Microwaves
-Computers
-Base of a cordless phone
-2.4 GHz cordless phone
•Place the modem router away from large metal surfaces, large glass surfaces, insulated
walls, and items such as these:
-Solid metal doors
-Aluminum studs
-Fish tanks
-Mirrors
-Brick
-Concrete
When you use multiple access points, it is better if adjacent access points use different radio
frequency channels to reduce interference. The recommended channel spacing between
adjacent access points is five channels (for example, use Channels 1 and 6, or 6 and 11).
Hardware Overview
13
AC1900 Cable Modem Voice Router
Install and Activate Your Modem Router
The modem router provides a connection between your cable Internet provider’s network and
your computer, router, or WiFi router.
Connect Your Modem Router to a Computer
During the installation and activation, you must connect the modem router directly to a
computer.
Cable modem
Cable
wall
outlet
Power cord
Ethernet
cable
Coax
cable
Phone cable
Figure 5. Connect the modem router directly to a computer
Note: Before you connect your modem router and contact your cable Internet
provider, collect your cable account number, account phone number,
and login information (your email address or user name and password).
To connect your modem router directly to a computer:
1. Connect
a coaxial cable.
Use the coaxial cable that your cable company provided to connect
modem router to a cable wall outlet. Make sure that the cable is tightly connected.
2. Turn off the computer to which you intend to connect the modem router.
3. Use
the Ethernet cable provided in the package to connect the Gigabit Ethernet port on the
modem router to an Ethernet port on the computer.
4. Connect
one end of the phone cable to the Tel (Voice) port on the rear panel of the modem
router and the other end of the phone cable to the telephone.
5. T
urn on the computer.
the cable port on the
Hardware Overview
14
AC1900 Cable Modem Voice Router
6. Connect the power cord provided in the package to the modem router and plug the power
cord into an electrical outlet.
When the startup procedure is completed, the Power LED
7. W
ait for the modem router to come online.
It takes at least 10 minutes for the modem router to come online on the network. During
this time, the LED behavior is as follows:
•The Downstream/Upstream LED
one or more downstream channels, the LED blinks fast when the modem router is
locking one or more upstream channels, and it lights solid white when one or more
downstream channels are locked.
•After the modem router registers with your cable Internet provider
lights white.
Even though an Internet connection is established, Internet service
set it up with your cable Internet provider.
For information about how to activate your Internet service and register your telephone lines,
see Call Comcast XFINITY to Activate Internet Service and Register the Voice Telephone
Lines on page 15.
blinks slowly when the modem router is locking
lights white.
, the Internet LED
is available only after you
Call Comcast XFINITY to Activate Internet Service and Register
the Voice Telephone Lines
Before you start the activation process, make sure that your account number, account phone
number, and login information (your email address or user name and password) are nearby.
To activate your Internet connection with Comcast XFINITY’s self-activation process:
1. Call
2. When
3. W
4. If
Comcast XFINITY customer service at 1-800-XFINITY (1-800-934-6489).
asked, provide your account information and provide the modem router’s model
number and MAC address, which are on the modem router label.
For more information, see Product Label on page 11.
ait for Comcast XFINITY to confirm that your modem router is active.
If you do not get an Internet connection with the modem router,
look for your modem router online, and do one of the following depending on what
Comcast XFINITY tells you about your modem router:
•If the modem router is not visible, Comcast XFINITY can give you instructions to
verify why the modem router does not connect with your high-speed Internet service.
•If the modem router is visible to Comcast XFINITY
your online status again.
you connected telephone lines, ask Comcast XFINITY to register your voice telephone
lines.
, reboot the modem router. Check
ask Comcast XFINITY to
Hardware Overview
15
AC1900 Cable Modem Voice Router
The Tel (Voice) LED blinks while the phone is being registered and then lights solid white
once it is registered.
After the voice line is registered, you can hear a dial tone when the phone is off-hook.
For information about voice telephone lines, see Chapter 7, Voice Telephone Lines.
Perform a Speed Test
To determine the accurate Internet speed, visit the speed test website of your cable Internet
provider and perform a speed test.
If your actual speed is lower than your subscribed speed, contact your cable Internet
provider.
Hardware Overview
16
2. Connect to the Network and
Access the Modem Router
This chapter contains the following sections:
•Connect to the Network
•Types of Logins
•Log In to the Modem Router
•Access the Modem Router With the NETGEAR genie App
2
17
AC1900 Cable Modem Voice Router
Connect to the Network
You can connect to the modem router’s network through a wired or WiFi connection. If you
set up your computer to use a static IP address, change the settings so that it uses Dynamic
Host Configuration Protocol (DHCP).
Wired Connection
You can connect your computer to the modem router using an Ethernet cable and join the
modem router’s local area network (LAN).
To connect your computer to the modem router with an Ethernet cable:
1. Make sure that the modem router is receiving power (its Power LED is lit).
2. Connect an Ethernet cable to an Ethernet port on your computer.
3. Connect the other end of the Ethernet cable to one of the numbered Ethernet ports.
Your computer connects to the local area network (LAN). A message might display on
your computer screen to notify you that an Ethernet cable is connected.
WiFi Connection
You can connect to the modem router’s WiFi network with Wi-Fi Protected Setup (WPS) or
you can find and select the WiFi network.
To use WPS to connect to the WiFi network:
1. Make sure that the modem router is receiving power (its Power LED is lit).
2. Check the WPS instructions for your WiFi-enabled computer or mobile device.
3. Press the WPS button on the modem router.
4. Within two minutes, on your computer or mobile device, press its WPS button or follow its
instructions for WPS connections.
Your computer or mobile device connects to the WiFi network.
To find and select the WiFi network:
1. Make sure that the modem router is receiving power (its Power LED is lit).
2. On your computer or mobile device, find and select the WiFi network.
Connect to the Network and Access the Modem Router
18
AC1900 Cable Modem Voice Router
The WiFi network name is on the modem router label.
3. Join the WiFi network and enter the WiFi password.
The password is on the modem router label.
Your computer or mobile device connects to the WiFi network.
Types of Logins
Separate types of logins serve different purposes. It is important that you understand the
difference so that you know which login to use when.
Types of logins:
•W
iFi network key or password. Your modem router is preset with a unique WiFi
network name (SSID) and password for WiFi access. This information is on the modem
router label.
Note: Your modem router broadcasts dual-band 2.4 GHz and 5 GHz WiFi
signals. The label shows the SSID for the 2.4 GHz signal. For
information about 5 GHz WiFi settings, see Specify Basic WiFi
Settings on page 79.
•Modem router login.
web browser as admin.
This logs you in to the modem router interface as admin from a
Connect to the Network and Access the Modem Router
19
AC1900 Cable Modem Voice Router
Log In to the Modem Router
When you connect to the network (either with WiFi or with an Ethernet cable), you can use a
web browser to access the modem router to view or change its settings. The first time you
access the modem router, the modem router automatically checks to see if it can connect to
your Internet service.
To log in to the modem router:
1. Launch
network.
2. T
ype http://www.routerlogin.net or http://www.routerlogin.com.
A login window opens.
3. Enter
The user name is admin.
password are case-sensitive.
The first time you log in to the modem router, you are prompted to change the admin
password and set up security questions. You must enter these settings before you can
access the Internet.
an Internet browser from a computer or mobile device that is connected to the
the modem router user name and password.
The default password is password. The user name and
4. Enter a new password.
5. Select
security questions and enter the answers.
Connect to the Network and Access the Modem Router
20
6. Click the Next button.
AC1900 Cable Modem Voice Router
7. Click the Next button.
The modem router connects to the Internet. The BASIC Home page displays
the Internet connection.
the status of
Access the Modem Router With the NETGEAR genie App
The genie app is the easy dashboard for managing, monitoring, and repairing your home
network. The genie app can help you with the following:
•Automatically repair common WiFi network problems.
•Easily
traffic meter, speed test, and more.
To use the genie app to access the modem router:
1. V
2. Follow
3. Launch
The genie app dashboard page displays.
manage modem router features like Live Parental Controls, guest access, Internet
isit the NETGEAR genie web page at NETGEAR.com/genie.
the onscreen instructions to install the app on your smartphone, tablet, or computer.
the genie app.
Connect to the Network and Access the Modem Router
21
3. Specify Your Internet Settings
3
Usually, the quickest way to set up the modem router to use your Internet connection is to allow
the modem router to detect the Internet connection when you first access the modem router with
a web browser. You can also customize or specify your Internet settings.
This chapter contains the following sections:
•Specify the Cable Connection Starting Frequency
•View Modem Router Initialization
•Manually Set Up the Internet Connection
•Specify an IPv6 Internet Connection
•Change the MTU Size
22
AC1900 Cable Modem Voice Router
Specify the Cable Connection Starting Frequency
The starting frequency is automatically generated. For most Internet connections, you do not
need to specify this information. If you must enter a starting frequency, contact your Internet
provider.
To change the starting frequency:
1. Launch
network.
2. T
ype http://routerlogin.net or http://192.168.0.1.
A login window opens.
3. Enter
The user name is admin.
password are case-sensitive.
The BASIC Home page displays.
4. Select Cable
a web browser from a computer or mobile device that is connected to the
the modem router user name and password.
The default password is password. The user name and
Connection.
The page displays the status of all downstream and upstream channels.
5. In
6. Click
the Starting Frequency field, type a number.
the Apply button.
Your settings are saved.
Specify Your Internet Settings
23
AC1900 Cable Modem Voice Router
View Modem Router Initialization
You can track the initialization procedure of the modem router and get details about the
downstream and upstream cable channel. The time is displayed after the modem router is
initialized.
The modem router automatically goes through the following steps in the provisioning
process:
1. Scans
2. Obtains
3. Connects
To view the status of the modem router initialization:
1. Launch
network.
2. T
A login window opens.
3. Enter
The user name is admin.
password are case-sensitive.
The BASIC Home page displays.
4. Select Cable
and locks the downstream frequency and then ranges the upstream channels.
a WAN address for the modem router.
to the Internet.
a web browser from a computer or mobile device that is connected to the
ype http://routerlogin.net or http://192.168.0.1.
the modem router user name and password.
The default password is password. The user name and
Connection.
The Startup Procedure section displays the initialization progress. The page also displays
the status of all downstream and upstream channels.(Scroll down to view all the
channels.) The number of downstream and upstream channels that are locked depends
on the number of channels that your Internet provider uses.
Specify Your Internet Settings
24
AC1900 Cable Modem Voice Router
Manually Set Up the Internet Connection
In most situations, you do not need to change these settings. We recommend that you use
the default settings for DHCP because most cable Internet services provide the IP address
through DHCP.
To specify the Internet connection settings:
1. Launch
network.
2. T
ype http://www.routerlogin.net or http://www.routerlogin.com.
A login window opens.
3. Enter
The user name is admin.
password are case-sensitive.
The BASIC Home page displays.
4. Select ADV
an Internet browser from a computer or mobile device that is connected to the
the modem router user name and password.
The default password is password. The user name and
ANCED > Setup > Internet.
5. If your Internet connection requires an account name or host name, type it in the Account
Name (If Required) field.
6. If
your Internet connection requires a domain name, type it in the Domain Name (If
Required) field.
For the other sections in this page, the default settings usually
them.
7. Select an Internet IP Address radio buttons:
•Get
Dynamically from ISP. Your ISP uses DHCP to assign your IP address. Your ISP
automatically assigns these addresses.
Specify Your Internet Settings
25
work, but you can change
AC1900 Cable Modem Voice Router
•Use Static IP Address. Enter the IP address, IP subnet mask, and gateway IP
address that your ISP assigned. The gateway is the ISP modem router to which your
modem router connects.
8. Select a Domain Name Server (DNS) Address radio button:
•Get Automatically from ISP. Your ISP uses DHCP to assign your DNS servers. Your
ISP automatically assigns this address.
•Use These DNS Servers. If you know that your ISP requires specific servers, select
this option. Enter the IP address of your ISP’s primary DNS server. If a secondary
DNS server address is available, enter it also.
9. Select a Router MAC Address radio button:
•Use Default Address. Use the default MAC address.
•Use Computer MAC Address. The modem router captures and uses the MAC
address of the computer that you are now using. You must use the one computer that
the ISP allows.
•Use This MAC Address. Enter the MAC address that you want to use.
10. Click the Apply button.
Your settings are saved.
If the NETGEAR website does not display within one minute, see Chapter 11,
Troubleshooting.
Specify an IPv6 Internet Connection
To specify an IPv6 Internet connection:
1. Launch an Internet browser from a computer or mobile device that is connected to the
network.
2. Type http://www.routerlogin.net or http://www.routerlogin.com.
A login window opens.
3. Enter the modem router user name and password.
The user name is admin. The default password is password. The user name and
password are case-sensitive.
The BASIC Home page displays.
Specify Your Internet Settings
26
AC1900 Cable Modem Voice Router
4. Select ADVANCED > Advanced Setup > IPv6.
If your Internet provider supports IPV6, the System Delegated Prefix field displays IPv6
information.
5. Select an IP Address Assignment radio button:
•Use DHCP Server.
IPv6 systems might not support the DHCP client function.
•Auto Config.
This setting specifies how the modem router assigns IPv6 addresses to the home
network (the LAN).
6. Complete
7. Click
Your settings are saved.
the fields in the Server Settings section.
the Apply button.
This method passes more information to LAN devices, but some
This is the default setting.
Change the MTU Size
The maximum transmission unit (MTU) is the largest data packet a network device transmits.
When one network device communicates across the Internet with another, the data packets
travel through many devices along the way. If a device in the data path uses a lower MTU
setting than the other devices, the data packets must be split or “fragmented” to
accommodate the device with the smallest MTU.
The best MTU setting for NETGEAR equipment is often the default
changing the value fixes one problem but causes another. Leave the MTU unchanged unless
one of these situations occurs:
value. In some situations,
Specify Your Internet Settings
27
AC1900 Cable Modem Voice Router
•You experience problems connecting to your ISP or other Internet service, and the
technical support of either the ISP or NETGEAR recommends changing the MTU setting.
These web-based applications might require an MTU change:
-A secure website that does not open, or displays only part of a web page
-Y
ahoo email
-MSN portal
-America Online’
•Y
ou use VPN and experience severe performance problems.
•Y
ou used a program to optimize MTU for performance reasons, and now you are
s DSL service
experiencing connectivity or performance problems.
Note: An incorrect MTU setting can cause Internet communication
problems. For example, you might not be able to access certain
websites, frames within websites, secure login pages, or FTP or POP
servers.
To change the MTU size:
1. Launch
an Internet browser from a computer or mobile device that is connected to the
network.
2. T
ype http://www.routerlogin.net or http://www.routerlogin.com.
A login window opens.
3. Enter
the modem router user name and password.
The user name is admin.
password are case-sensitive.
The BASIC Home page displays.
4. Select ADV
ANCED > Setup > WAN Setup.
The default password is password. The user name and
Specify Your Internet Settings
28
AC1900 Cable Modem Voice Router
5. In the MTU Size field, enter a value from 64 to 1500.
6. Click
the Apply button.
Your settings are saved.
If you suspect an MTU problem, a common solution is to change the
MTU to 1400. If you are
willing to experiment, you can gradually reduce the MTU from the maximum value of 1500
until the problem goes away. The following table describes common MTU sizes and
applications.
Table 2. Common MTU sizes
MTUApplication
1500The largest Ethernet packet size. This setting is typical for connections that do not use
1492Used in PPPoE environments.
1472Maximum size to use for pinging. (Larger packets are fragmented.)
1468Used in some DHCP environments.
1460Usable by AOL if you do not use large email attachments, for example.
PPPoE or VPN, and is the default value for NETGEAR routers, adapters, and switches.
Specify Your Internet Settings
29
4. Control Access to the Internet
The modem router comes with a built-in firewall that helps protect your home network from
unwanted intrusions from the Internet.
This chapter includes the following sections:
•Set Up Parental Controls
•Block Access to Your Network
•Use Keywords to Block Internet Sites
•Block Services From the Internet
•Schedule When to Block Internet Sites and Services
•Avoid Blocking on a Trusted Computer
•Set Up Security Event Email Notifications
•Manage Services
•Enable or Disable NAT
4
30
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