I am part of a small-business network of 5 pcs that were sort of cobbled-together. The pcs make up all makes/models/OS. The network has worked fine for the entire time that I've been with the company (almost 2 years now), but something has happened that has me at a loss. Suddenly one of the PCs has become partially blind to the network. It can see two of the PCs that are there, but not the other two. I cannot figure out why it has suddenly developed this selective problem or what to do about it. I am mildly experienced with pcs and networking and have dug around to the best of my abilities but I am now at a loss as so how to fix it and was hoping for some guidance to what I may have forgotten... The PC in question is a laptop running Win2000. All the PCs on the network are hardwired in. I'm not sure what other information might be immediately relevant. Thanks Robert

Are these running firewalls? If so that would be the first place to check. Firewalls should be configured to trust your local ip subnet so all hosts on your lan are not blocked. Next thing to check is go to every machine and a cmd prompt type ipconfig. Are all these in the same ip subnet? Imagine the power if you knew how to internet search

My boss has the laptop with him, so I will have to check the IP later. What I don't quite understand is that the other PCs all see each other just fine, it's just this one that seems to have the issue, and then it only has an issue seeing SOME of the PCs, but it sees the others just fine. Would make more sense to me if it was all or nothing....

Users sometimes answer firewall popup questions wrong which then block a pc but not all pcs on the lan. Boss's are famous for doing these kind of things. Imagine the power if you knew how to internet search