I have to first vent and say how frustrated I am. I take pride in solving most issues within a few hours of research, but unfortunately I have not had such luck with this one. Listed below is my equipment and situation.
1. Dell XPS M1330 Notebook Computer w/Intel 4965AGN Wireless Adapter and Vista Ultimate x86
2. Belkin N1 Vision Wireless Router
Web browsing is extremely slow and in some cases times-out on visiting a lot of sites (but not all). Downloading files is no problem and my rate is great. It seems as if the problem is related to a Windows Update because everything was working fine, then one day just started happening. The problem does not exist when this notebook computer is hardwired or on other computers (non-Vista) that access this router. The problem also does not exist on some public wireless access points. There were a lot of updates that happened at the same time, so I have not started pulling them out one-by-one. I can't help but think someone else is experiencing this problem and may have found a solution. All drivers are updates and router has the latest firmware. I did the netsh autotuning disable when I first setup the computer (as it was a problem on a lot of Vista desktops that I have worked with).
Thanks in advance for any help.