Boggin
For several months I've been experiencing frustratingly long response times on the net. I use Firefox and Bing. Typically after a reboot, I'll get very good response times (a second or so) with the first 6 - 12 urls. Then response times can be measured in minutes. Quite frequently the request just times-out. I tried to swap between Userids, but this made no difference. I tried IE and Google. The same. I have no choice but to reboot. Just occasionally and very confusingly, I can use my system with good response time for up to 30 minutes before the problem re-appears.
I've checked line speeds (BT with BTInternet). Downloads between 5-6Mbps, uploads between 0.5-0.6Mbps. Good for our rural area. I've tried various Malware products, singly and in groups. These include my own Anti-virus Bitdefender, Malwarebytes, SAS and Spybot. With no obvious improvement using this technique, I checked the Web for "How to identify and resolve bottlenecks in XP". That's when I cam across Tweaking.com.
Hope that helps
Peter