strange speed problem

[koke]

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

[Greenstead]

Nothing obvious comes to mind based on your experience. The common factor between the two PCs would seem to be your ISP. I would try asking them.

[koke]

It's definitely not my ISP. Everything stays fine if I am connected directly to the modem. Only when I'm connected through the router do these weird speed anomilies happen.

I actually think that the problem might be being caused by mIRC. As a test, I didn't open mIRC for 24 hours and the speed actually stayed good. Now I need to figure out what exactly in mIRC is causing the speed problem.

Anyone have any ideas?

[koke]

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?

[koke]

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

[koke]

Anyone have any ideas?

[Greenstead]

I don't use mIRC but clearly it can cause a problem.
Why don't you get rid of it and try something like Trillion.