Problem with WiXP and Internet connection

[Eager_Beever]

Hi, I have a desktop (Core2Duo 1.86GHz., 2 GB DDR2 RAM and 360 + 320 + 80 GB Harddisks). I use multiboot with WinXP Pro SP3, Vista Ultimate x86 SP2 and Windows 7 Ultimate x64. I have a broadband internet connection. And I use a licensed copy of Kaspersky Internet Security which I have the habit of updating daily. Since last couple of weeks I am facing a peculiar problem in my WinXP. After about 5 - 9 minutes of connecting to the internet on WinXP data transfer stops but the connection is maintained. I have to manually terminate the connection, swith off the modem and wait for a couple of minutes (sometimes I have do this more than once), switch on the modem, wait for the modem and LAN connection to be steady and then connect again. But after 5 - 9 minutes the same thing happens. When the problem surfaced for the first time, I formatted and installed WinXP SP3 again along with all required softwares. The broadband connection worked OK for a few days but then it surfaced again. I have no problem to broadband connection in either Vista or Windows 7, where I can have a steady connection for as long as I want (I have tested for 10 hours non-stop connection). Hence we can rule out the Modem or the system hardware from being the culprit. The problem lies in WinXP only (software fault/corruption). Besides the broadband problem I do not have any other problem. I suspect Winsock corruption, but "Rizone's Winsock Repair v0.0.5.265" failed to solve the problem. I tried the command "netdiag /test:winsock" and got a result as to "M*crosoft Tun Miniport Adapter" may not be working and "NetBT Transports Test failed" + "No NetBT transports are configured".

I have thoroughly checked the system for any malware/trojan/virus etc. with the latest update but nothing was found.

Can anybody please suggest me a solution?? I am becoming desperate.

Thank you.

Eager_Beever

[Tripredacus]

When your computer loses its connection, try to ping your modem/router. Also see what your IP address is when you can't connect. In addition, check other programs like IMs or see if you can get to google.com using its IP address. For example:

http://74.125.45.100/