Time-based connection problems

[Rocha]

Hello, and thanks in advance for any help you all can provide.

I've been having this problem for about a month now, and nothing in particular with my network has changed since before I encountered it.

Every night, at around 8 PM, I start experiencing frequent disconnections (every 4-10 minutes) continuing into the night until about 2 AM. It lasts about 10 seconds or so, and then comes right back up like nothing ever happened.

Here's a breakdown of my network:

http://img4.imageshack.us/img4/736/network.png

Router - WRT54G
AP 1/2 - WAP54G (bridged)
Switch - EZX55W

The only thing I've noticed is that PC 1 is the only one affected. Even connecting my laptop to the router via wireless, it doesn't have this problem.

PC 1 is running Vista 32-bit, with a Marvell Yukon 88E8050 Network Adapter using up-to-date drivers.

I've ruled out problems with the router, access points, switches, and the network adapter. I also doubt it's an ISP problem since the other computers aren't affected. I've scanned the computer with AdAware SE, ZoneAlarm anti-virus, and SpyBot S&D with no results. None of the processes are causing it either.

If anyone can help, I'd really appreciate it. Sorry for the text wall

Edit: I'm on Comcast, but I doubt that means much.

 

[oldskool]

Maybe you could try looking in your Event Viewer to see what problems have been arising, event errors and such. That might give you some insight by checking there.

 

[Rocha]

No Events were logged during the time the disconnections took place.

 

[oldskool]

Well it was just a thought. Sometimes if an application or process has a lot of entries then that tends to be something worth considering.

Not sure what to tell you. Interesting but sorry I couldnt help.