I have an XP Home SP3 computer that is unable to browse the internet. It connects (via LAN) just fine, can ping public address, it can ping URLs, and it is receiving e-mail via OE just fine.
I first suspected Internet Explorer 7, but I am unable to browse with Safari either. I found a troubleshooting tool under the Tools menu in IE. It reported that port 80 was not accessible. The Windows firewall is turned off and no other firewall is installed. AVG Internet Security is installed, however the Firewall portion is not installed. I installed it this way on purpose in favor of using the Windows firewall.
I repaired the connection using the Repair option, and also ran NETSH INT IP RESET, both of which ran but caused no change in the problem.
I hooked my laptop to the cable modem in use, and was able to surf just fine, so it appears the problem is with the computer itself.
The computer will surf in Safe Mode with Networking. In the normal mode I removed all HKCU Run & HKLM Run registry items, and turned off all other start up items I was able to access in MSCONFIG. But no joy.
Any ideas where to go from here? Thanks in advance!