Internet running super slow

[lunchboxtof]

On my desktop, as of a couple of days ago the internet is running terrible. However, if I use the internet on my laptop it works fine. I've tried searching for viruses, spyware, I've tried disabling as many programs as I can and trying again and yet it still will not run well. I have wireless and lan on the computer, I've tried using just wireless, and using just lan and neither improves the internet speed whatsoever. So, is there anything I can try since this problem happened so abruptly and is not present on my laptop?

Also, I booted it into safe mode and the internet runs perfect. What could cause my internet to suddenly run slow on just one computer?

Also, I noticed it works ok for the first couple of minutes, then slowly gets worse, which leads me to believe something running while all the drivers/sw is running is slowing it down, but I don't know what exactly.

edit: I have symantec corporate edition thanks to school. However that has been on there for years without a problem. Though I do notice that rtc scan went from being 13000k to 64000k in task manager...it could be related to that, but how do I fix that?

I forgot to mention, I'm running Windows XP

Edited March 17, 2008 by lunchboxtof

[+allan MVC]

If you've already done a full AV Scan (with the latest definitions) and run BOTH Spybot and AdAware, then open msconfig to the startup tab and choose "selective startup" (disable everything except Microsoft services) and reboot. Is the problem still evident? If not, start adding processes back one at a time, rebooting after each, until the problem returns and you'll have identified the culprit.

[lunchboxtof]

Msconfig, hmm...alright, will do.

[+allan MVC]

Only because you say everything is fine in safe mode. That would indicate there is something loading with the OS during a normal boot that is causing the problem. NOTE: do not bypass the 3 scans I suggested. It is not unlikely that there is malware on your system.

[xxsawer]

Hi I maybe have an idea whats the problem...Did you check the event viewer? Right click This computer -> manage -> event viewer -> system tab If you will see some tcpip warning, thats the problem. Win xp allows only 10 halfopen conections and next connection are waiting in a front until some of that 10 halfopened connection are either opened or closed

Solution is to patch tcpip.sys

[+allan MVC]

Hi I maybe have an idea whats the problem...Did you check the event viewer? Right click This computer -> manage -> event viewer -> system tab If you will see some tcpip warning, thats the problem. Win xp allows only 10 halfopen conections and next connection are waiting in a front until some of that 10 halfopened connection are either opened or closed

Solution is to patch tcpip.sys

That has nothing to do with his problem.

[lunchboxtof]

Alright, I did a scan of everything on my comp with AVG, Adaware and Spybot, but it didn't find any malware, just tracking cookies. I might have to format if things don't start to look up...

Alright, I disabled utorrent and suddenly it started working again. I'm seeding a lot of things, and this hasn't been a problem in the past, but apparently it started to cause a fuss. I modified the tcpip.sys file but it didn't seem to help, do I need to reboot for it to work properly? Thanks!

Edited March 18, 2008 by lunchboxtof

[+allan MVC]

If you are downloading a lot of torrents then modifying the tcpip.sys file may help - you didn't mention this in your original post. Next time you post a problem, try to give all of the information at one time.