Losing internet connection on only some PCs

[dwg51357]

I have 3 PCs on my Netgear WNR2000v2 network. One is hard-wired. Two are wireless connections.

Lately, the hard-wired PC and one of the wireless-connected PC have been losing their internet connection. The other wireless PC keeps its internet connection.

The two PCs that lose the internet connection are still connected to the network and can access all of the other devices on the network.

Does anyone know what might be causing this problem?

Thank you!

[jmizoguchi]

possible malware on pc side?

have you reset the browser and see?