unable to ping linksys wireless router

Computer A is wired to Linksys WRT54G on port 1 Router is connected to Cable modem on WAN.
Computer B is in another room connected wirelessly.
Now here's the issue until few days ago computer B was able to connect to internet and printer, now computer B shows it is connected to Linksys router, yet will not connect to internet or printer.
Computer A connects to internet and prints fine, also my laptop using a PCMIA wireless card connects to Linksys router and connects to internet fine.
Can not ping or log into router from any of the three computers, yet a few days ago was able to ping and log into router.
Please help.

 

Welcome to the forum trader.

We'll need a little more information. Can you please post the output of ipconfig /all for both computer A and computer B? If you enter:

Code:

ipconfig /all > ipconfig.txt

at a command prompt, a file ipconfig.txt will be created and it will contain the output of the ipconfig statement. You can then cut and paste that into a posting here.

 

You can reset the router with the reset switch on the back and try setting up the router again as a first step.

 

ipconfig/all

Computer A
IP 192.168.100.xxx
Gateway 1962.168.100.1
DNS

Computer B
IP 192.168.100.xxx
DNS 10.0.0.0
Gateway 192.168.100.1