Network Lags and Drops

I just had a bout with Malware/Spyware, and finally cleaned it up w/ the help of MG specialists. I'm only left with a network issue that I hope someone can help me with. It started around the same time as the infection, so I don't know if it's related or not. I've already posted the below under the malware section, but Tim (MG Admin) also suggested that I post it here.

Ever since the virus hit, computers on my network have been having bouts of disconnections to the wireless router (whether wired or wireless connection). For instance, you'll be browsing, then all of a sudden, the connection drops, and the page doesn't load. After a few refreshes it comes back. Any advice?

My network setup is a Linksys Wireless Gateway that connects to a DSL Router (AT&T) to DSL. Idon't believe it's ISP related b/c during the "down-time", I've tried pinging (via the command prompt) to backtrack to where it fails, and it's at the wireless router.

Thanks in advance.

 

Have you tried updating the firmware on the linksys gateway?