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Appendix A: Troubleshooting
Common Problems and Solutions
Dual-Band Wireless Access Point
B.Enter the password, if asked. (The default password is admin.)
C.On the Setup screen, select the option Keep Alive, and set the Redial Period option at 20 (seconds).
D.Click the Apply button.
E.Click the Status tab, and click the Connect button.
F.You may see the login status display as Connecting. Press the F5 key to refresh the screen, until you see the
login status display as Connected.
G.Click the Apply button to continue.
If the connection is lost again, follow steps E to G to re-establish connection.
15. I can’t access my e-mail, web, or VPN, or I am getting corrupted data from the Internet.
The Maximum Transmission Unit (MTU) setting may need to be adjusted. By default, the MTU is set at 1500. For
most DSL users, it is strongly recommended to use MTU 1492. If you are having some difficulties, perform the
following steps:
A.To connect to the Router, go to the web browser, and enter http://192.168.1.1 or the IP address of the Router.
B.Enter the password, if asked. (The default password is admin.)
C.Click the System tab.
D.Look for the MTU option, and select Manual. In the Size field, enter 1492.
E.Click the Apply button to continue.
If your difficulties continue, change the Size to different values. Try this list of values, one value at a time, in this
order, until your problem is solved:
1462
1400
1362
1300
16. The Diag LED stays lit continuously.
• The Diag LED lights up when the device is first powered up. Meantime, the system will boot up itself and check
for proper operation. After finishing the checking procedure, the LED turns off to show that the system is working
fine. If the LED remains lit after this time, the device is not working properly. Try to flash the firmware by
assigning a static IP address to the computer, and then upgrade the firmware. Try using the following settings, IP
Address: 192.168.1.50 and Subnet Mask: 255.255.255.0.
17. When I enter a URL or IP address, I get a time-out error or am prompted to retry.
• Check if other PCs work. If they do, ensure that your workstation’s IP settings are correct (IP Address, Subnet
Mask, Default Gateway, and DNS). Restart the computer that is having a problem.
• If the PCs are configured correctly, but still not working, check the Router. Ensure that it is connected and
powered on. Connect to it and check its settings. (If you cannot connect to it, check the LAN and power
connections.)
