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Appendix A: Troubleshooting
Common Problems and Solutions
ADSL2+ Gateway with VoIP
•
If you do NOT get a reply, check the cable, and make sure
Obtain an IP address automatically
is
selected in the TCP/IP settings for your Ethernet adapter.
D. In the command prompt, type
ping
followed by your Internet IP address and press the
Enter
key. The
Internet IP Address can be found in the web interface of the Gateway. For example, if your Internet IP
address is 1.2.3.4, you would enter
ping 1.2.3.4
and press the
Enter
key.
•
If you get a reply, the computer is connected to the Gateway.
•
If you do NOT get a reply, try the ping command from a different computer to verify that your original
computer is not the cause of the problem.
E. In the command prompt, type
ping www.linksys.com
and press the
Enter
key.
•
If you get a reply, the computer is connected to the Internet. If you cannot open a webpage, try the
ping command from a different computer to verify that your original computer is not the cause of the
problem.
•
If you do NOT get a reply, there may be a problem with the connection. Try the ping command from a
different computer to verify that your original computer is not the cause of the problem.
4. I am not getting an IP address on the Internet with my Internet connection.
A. Refer to “Problem #4, I want to test my Internet connection” to verify that you have connectivity.
B. If you need to register the MAC address of your Ethernet adapter with your ISP, please see “Appendix B:
Finding the MAC Address and IP Address for Your Ethernet Adapter.” If you need to clone the MAC address
of your Ethernet adapter onto the Gateway, see the Router - WAN Setup - MAC Clone Settings section of
“Chapter 6: Configuring the ADSL2+ Gateway” for details.
C. Verify you are using the right Internet settings. Contact your ISP to see if your Internet connection type is
DHCP, Static IP Address, or PPPoE (commonly used by DSL consumers). Please refer to the Router - WAN
Setup - Internet Connection Settings section of “Chapter 6: Configuring the ADSL2+ Gateway” for details
on Internet Connection Type settings.
D. Make sure you use the right cable. Check to see if the Ethernet LED is solidly lit.
E. Make sure the cable connecting from your cable or DSL modem is connected to the Gateway’s Internet
port. Verify that the Router - Status page of the Gateway’s web-based utility shows a valid IP address from
your ISP.
F. Turn off the computer, Gateway, and cable/DSL modem. Wait 30 seconds, and then turn on the Gateway,
cable/DSL modem, and computer. Check the Router - Status page of the Gateway’s web-based utility to
see if you get an IP address.
5. I am not able to access the Gateway’s web-based utility Setup page.
A. Refer to “Problem #4, I want to test my Internet connection” to verify that your computer is properly
connected to the Gateway.
B. Refer to “Appendix B: Finding the MAC Address and IP Address for Your Ethernet Adapter” to verify that
your computer has an IP Address, Subnet Mask, Gateway, and DNS.