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Diagnostics and Troubleshooting
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AC1200 WiFi DSL Modem Router—Essentials Edition Model D6100
Perform Diagnostics
The modem router lets you perform various diagnostic tasks. For normal operation, these
tasks are not required.
Ping an IP Address
Use this test to send a ping packet request to an IP address to test the connection. If the
request times out because no reply is received, the destination might be unreachable.
However, some network devices can be configured not to respond to a ping.
To ping an IP address:
1. Launch an Internet browser from a computer or WiFi device that is connected to the
network.
2. T
ype http://www
.routerlogin.net.
A login screen displays.
3. Enter the user name and password for the modem router.
The user name is admin.
The default password is
password. The user name and
password are case-sensitive.
4. Click the OK button.
The BASIC Home screen displays.
5. Select ADVANCED >
Administration > Diagnostics.
The Diagnostics screen displays.
6. In the IP address or host name field, enter an IP address or host name.
7. Click the Ping button.
The Diagnostics - Ping screen displays the results of the ping test.
To return to the Diagnostics screen, click the Back button.
Perform a DNS Lookup
Use this test to find the IP address of a web, FTP, mail, or other server on the Internet.
To look up an IP address:
1. Launch an Internet browser from a computer or WiFi device that is connected to the
network.
2. T
ype http://www
.routerlogin.net.
A login screen displays.
3. Enter the user name and password for the modem router.