Lost connections

[monton]

I have an XP Pro computer that loses it's connection to the web after a few minutes or less. The icon says I am connected to the LAN but I lose internet access. There are 6 other computers running XP Pro, XP Home and Ubuntu on the LAN and none have this problem. I run winsock fix, reboot, and can connect to the web again. I can't find a reason but it seems more time based then random.
Any thoughts out there? Diagnostics?
Also, I just installed AVG free and it reported another antivirus program on the computer but I can't find any. This computer has had ZoneAlarm and PC-cillin on it in the past but both were uninstalled.
Any suggestions would be appreciated
Thanks,
Monton

 

[LookinAround]

Let's start here....

Download Autoruns and then clik on file autoruns.exe to start it. Notice its status in lower left corner of window

• Hit ESC key (your upper left on keyboard) to stop scanning
• Click Options Check Verify Code Signatures. Other options should be unchecked
• Click File->Refresh to start scanning
• Wait for status in lower left says Done.Then click File->Save As, save to a text file and attach the file (using paper clip icon for attachments) onto your next post