In trying to fix a problem I've been having for about 2 months, a colleague referred me here, so I hope you can help. I have a Linksys CM100 cable modem connected to a Linksys WRT54G2 router. There is a laptop connected to the router through a wired connection (my roommate's) and my laptop connected via wireless. Both computers are affected by the problem I am about to describe. About 3 months ago my internet connection started slowing down dramatically, finally failing after 4 or 5 days of restarting the router and modem time and time again and numerous releasing & renewing of my IP address (through the CMD prompt method as well as the network connections "repair" method). I had a networking professional from my job come over and look at it and after 3 hours of checking settings, trying different configurations and testing, he said he couldn't find anything wrong and suggested I get a new router. As my hardware was 2 or 3 years old, I figured that was the culprit and replaced both my router and modem. Set everything up and it worked like a charm. For a month or so, then the problem returned.
Here's what happens... I am connected to my network (signal strength Excellent), just checking websites, my mail, etc -- no constant torrent traffic or anything (i do use on occasion). After a while, responses will become delayed, pages will start hanging up and then finally failing to load at all. When this happens, I'm still connected to the router and the router is still connected to the internet but when I try to ping the internet to confirm my connection, it will sometimes fail. In the past week, as this has happened several times at various times of the day, sometimes it has been fixed by resetting the router and modem, but other times it's only started working again by resetting everything, turning off my computer and waiting.
I am only running AVG and HAD WPA2 security on the router, but at a friend's recommendation, I disabled that last night and the speed of the internet connection picked up dramatically, but the problem returned this morning. I'm wondering if someone can tell me what's going on? I've posted my HijackThis log. Many thanks in advance for any help you can provide!