Troubleshooting
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N300 Wireless ADSL2+ Modem Router DGN2200v3
3. Click the Connection Status button.
4. If all of the steps indicate OK, then your PPPoE or PPPoA connection is up and working.
5. If any of the steps indicates Failed, you can attempt to reconnect by clicking Connect. The
modem router continues to attempt to connect indefinitely.
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.
Troubleshooting 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.
Test the LAN Path to Your Modem Router
You can ping the modem router from your computer to verify that the LAN path to your
modem router is set up correctly.
To ping the modem router from a PC running Windows 95 or later:
1. From the Windows task bar, click the Start button, and select Run.
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