Problems connecting to web through router

[InflatableBuddha]

I have two computers sharing a cable internet connection through a D-Link EBR-2310 wired router. One of the computers has no problems connecting, but the other one has intermittent problems. Some days it will connect to the internet but not on others 😕. Neither IE7 or Firefox works.

The PC in question is an eMachines c1641. The onboard NIC is a Realtek RL8139. I disabled it some time ago when I added a new NIC (also a Realtek RL8139). I have tried already:

Rebooting the PC
Resetting the modem and router
Repairing the connection

What should I try next to troubleshoot? Thanks.

 

[dfnkt]

when this other pc cant connect, can you ping the router at its ip address, can you ping an outside address such as google? verify that it gets a valid ip address from the router (192.168.x.x/172.16.x.x.)

 

[JackMDS]

May be this can Help, http://www.ezlan.net/debug.html

 

[InflatableBuddha]

Originally posted by: JackMDS
May be this can Help, http://www.ezlan.net/debug.html

Jack,

I followed the steps in the guide you linked to. After resetting the TCP/IP stack and rebooting, the connection is working again.

Thanks!