strange speed problem with wireless router

[mjrand]

I have a very strange issue. Basically, every time I do a fresh restart of my computer, the router functions at full speed. After a day though if I haven't restarted, the speed drops to much slower. Like instead of 500k/sec from a site, I get only 110k/sec max. What's weird is that it only affects European sites or other sites in very far away locations and it doesn't just affect 1 European site, it affects all of them. Every single European site gives me exactly 110k/sec if I haven't restarted in a day. Not 109 or 111, but exactly 110. US ones still go full speed.

I don't usually have too many programs running, but I have been unable to pinpoint exactly what is causing my problem. Anyone have any ideas? The only programs I run that use the network are my browser, an ftp client, and mIRC. Since the problem doesn't occur right away even with all programs open, it makes it impossible to pinpoint exactly what's causing the problem.

Could it be a problem with the PCI slot or my wireless card even though US sites keep working full speed.? A power issue? A CPU or RAM issue? I doubt its those because I experienced the problem on 2 different computers. Or does anyone else have any ideas on what it could be?

Thanks

 

[mjrand]

I have gotten a little further now.

I have confirmed that it is definitely something with mIRC. I left the computer on without mIRC for about 26 hours and the speed stayed fine. I opened mIRC for a few hours and it was also fine, until mIRC disconnected itself and came up with the error [10053] Software caused connection abort. After that the speed was dead again. I restarted my computer a minute later and the speed was fine again.

Closing mIRC and all other applications doesn't help. A full restart is required. I assume this is because it reloads the drivers for my Wireless NIC after a restart.

What could possibly be causing this problem?

 

[mjrand]

I noticed that when mIRC disconnects, it actually takes the rest of the network with it for a minute. What could mIRC possibly be doing to my connection to cause all these problems. Anyone have any ideas?

 

[azev]

Why dont you try uninstalling mIRC, wireless nic drivers, and reinstall the driver nic. Test it for a couple of days to see if the problem comes back, if not then reinstall the latest mIRC and tested again. A long shot, but worth a try.