We have a Windows XP, that we recently installed all of the windows updates on. We attempted to install AVG free antivirus and found that grisoft.com was blocked.
We have tried looking at the hosts file, which has nothing foreign in it. I checked the registry, the host file is still mapped to /$SystemRoot$/system32/dri
vers/etc . Several other virus scans found items, but now the computer is coming up clean on all scans.
We also tried Internet Explorer and Firefox. Neither let us reach the site. We can ping grisoft.com and get the correct ip address. If we go into either IE or Firefox and do: http://ipaddress/
it fails. If we use that same IP address on another machine, it takes us directly to grisoft.com.
We also manually installed AVG from an installer, and it installs fine. When it installs updates, it says that it can not reach the grisoft update service.
So it appears this issue is not specific to a browser, and DNS is also properly translating grisoft.com to its IP. The question is, what else would cause this not work?
Thanks for any advice.