Internet Connection Problem

I have just changed ISP and all was OK yesterday, the first day of the change over. But today I could not connect to the internet. After a very long phone call to the ISP they said the router was working OK and they could see from their end I was connected, but from my screen there was nothing. They went away and are looking at it further. In the mean time I retored the PC to an earlier point (early yesterday) and hey presto its all working again. Any ideas how I find out what went wrong, could it be MS updates I downloaded yesterday?

Its hard to say bluesnapper. Its always easier to diagnose a problem when the problem is occuring. Once you perform the system restore we lose our ability to tell you what and how it happened. If the problem occurs again, come back here for advice so we can check some settings and make sure everything looks correct. Please don't perform any more system restores to resolve the problem until we can find out WHAT your problem really is.