I didn't want to hijack the 'No Internet Access' thread but having used the fixes therein have a strange problem.
I was re-installing my software, yesterday, after my 'upgrade' from 32 bit Vista to 64 bit Windows 7. Soon after my installation of Dreamweaver I lost internet access. I also noticed the icon in the notification area was showing an exclamation mark. I ran the diagnostics but Windows was unable to find a problem. I decided to do a system restore to the point before Dreamweaver was installed.
This did not fix the problem. I knew it wasn't a hardware problem because I could see and connect to the rest of the home network and I could connect to the internet using my wife's laptop connecting through the the same switch and router. I even tried using her connection cable to eliminate the cable and switch port as possible culprits.
Using my wife's laptop I found the thread that reported my exact problem. The problem, it seemed, was due to the Bonjour service. The suggested fix "How To Uninstall or Remove Bonjour mDNSResponder.exe Raymond.CC Blog
" did not work for me, possibly because I had done a system restore. I was able to find and remove all references to 'Bonjour' in the registry and this removed the service and, after a restart, am now able to connect to the web.
Now my problems:
My copy of IE (64 bit) connects OK but my copy of Firefox still can't find web sites.
My copy of Outlook cannot retrieve my emails, failing with
"Task 'xxxxxx' reported error (0x800408FF) : 'Unknown Error 0x800408FF' "
Any ideas anyone, is it only 64 bit apps that will work?