User manual

81
16 Troubleshooting
This appendix suggests solutions for problems you may encounter
in installing or using your RTA100+ ADSL Modem/Router, and
provides instructions for using several IP utilities to diagnose
problems.
Contact Customer Support if these suggestions do not resolve the
problem.
Problem Troubleshooting Suggestion
LEDs
Power LED does not illuminate
after product is turned on.
Verify that you are using the power cable provided with the
device and that it is securely connected to the RTA100+
ADSL Modem/Router and a wall socket/power strip.
LINK WAN LED does not illuminate
after phone cable is attached.
Verify that a standard telephone cable is securely
connected to the ADSL port and your wall phone jack. Wait
30 seconds to allow the device to negotiate a connection
with your ISP.
LINK LAN LED does not illuminate
after Ethernet cable is attached.
Verify that the Ethernet cable is securely connected to your
LAN hub or PC and to the RTA100+ ADSL Modem/Router.
Make sure the PC and/or hub is turned on.
Verify that you are using correct cable. See “Connecting
the Hardware” for more information.
DIAG LED stays illuminated after
turning the device on.
The DIAG LED should turn off after about 10-15 seconds. If
it does not, turn off the RTA100+ ADSL Modem/Router,
wait 10 seconds, and then turn it back on.
Internet Access
PC cannot access Internet Use the ping utility to check whether your PC can
communicate with the RTA100+ ADSL Modem/Router’s
LAN IP address (by default 192.168.1.1). If it cannot, check
the Ethernet cabling.
If you statically assigned a private IP address to the
computer, (not a registered public address), verify the
following:
Check that the gateway IP address on the computer is your
public IP address. If it is not, correct the address or
configure the PC to receive IP information automatically.
Verify with your ISP that the DNS server specified for the
PC is valid. Correct the address or configure the PC to
receive this information automatically.
Verify that a NAT rule has been defined on the RTA100+
ADSL Modem/Router to translate the private address to
your public IP address.
PCs cannot display web pages on
the Internet.
Verify that the DNS server specified on the PCs is correct
for your ISP. You can use the ping utility to test connectivity
with your ISP’s DNS server.