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N600 Wireless Dual Band Gigabit VDSL2 Modem Router DGND3800B
Troubleshoot PPPoE or PPPoA
To troubleshoot a PPPoE or PPPoA connection:
1.
Select ADVANCED > Administration > Router Status.
2.
Click the Connection Status button.
3.
Check t o see if your PPPoE or PPPoA connection is up and working.
4.
If any of the fields on the Connection Status screen indicates Failed, you can attempt to
reconnect by clicking Connect.
The modem router continues to attempt to connect indefinitely.
5.
If you cannot connect after several minutes, you might be using an incorrect service name,
user name, or password. There also might be a provisioning problem with your ISP.
Note:
Unless you connect manually, the modem router does not
authenticate using PPPoE or PPPoA until data is transmitted to the
network.
Troubleshoot Internet Browsing
If your modem router can obtain an IP address, but your computer is unable to load any web
pages from the Internet:
•
Your computer might not recognize any DNS server addresses.
A DNS server is a host on the Internet that translates Internet names (such as www
addresses) to numeric IP addresses. Typically your ISP provides the addresses of one or
two DNS servers for your use. If you entered a DNS address when you set up the modem
router, reboot your computer, and verify the DNS address. Alternatively, you can
configure your computer manually with DNS addresses, as explained in your operating
system documentation.
•
Your computer might not have the modem router configured as its TCP/IP modem router.
If your computer obtains its information from the modem router by DHCP, reboot the
computer, and verify the modem router address.
TCP/IP Network Not Responding
Most TCP/IP terminal devices and routers have a ping utility for sending an echo request
packet to the designated device. The device responds with an echo reply to tell whether a
TCP/IP network is responding to requests.
Troubleshooting
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