I have a Dell 4500 that I've been working on. I installed a DLink DFE-530TX+ PCI card into it so I could connect it to my DSL. It connects fine when I boot it but after a while it seems to lose it's connection. If I try to open IE6 or if it's already open and I try to load a page I get a page cannot be found error. Or if I try to do a Norton Live Update it will say there is no active connection to the internet. I remember my own Dell used to do this periodically but I don't remember how I fixed it. Anyone have the solution?

Is it hooked up to a router? It could be the router, I have seen routers cause this problem.

Yes, it's going through the same router (DLink 614+) that my machine and the others in the house use without any problem.

oh, in that case it's probably not the router then. hmmm

I may have found it. In device manager under the properties of the network adapter/power management it was set to "allow the computer to turn off this device to save power", where on my machine that box is not checked.

Could that be the culprit?

You've never messed around with the MTU size in the registry have you?

No.

Yupp, and the first thing I thought of.

Argh! I knew the answer for one of these and I was too slow!