Well, you have taken some good steps in narrowing down the focus of the issue!
So, it appears there is something specific regarding THAT computer, vs the router, etc.
A good troubleshooting step would be to wire this computer. Take the cable between your DSL modem and router, and unplug it from the router. Now, plug it into the computer directly and reboot. Does the issue persist?
Something else to think about: A malware infection can cause connectivity issues. A malware infection wil USUALLY manifest itself in 4 stages:
- The computer exibits buggy behavior, such as warnings appear, or some program doesn't always work right, etc.
- The computer starts to run slow: takes longer to start, takes longer to shutdown, when you click on something it might delay a second or two before responding.
- You start to have connectivity problems. You can't get on the internet, or you keep getting bumped off the internet. The internet connection works real slow, etc.
- The computer won't boot.
Does this ring true for you? Does your computer fit the above description?
Edited by Albert Frankenstein, 09 November 2006 - 08:44 AM.