I have a small network connected to the internet via a PC running Windows Advanced Server 2003 and ISA 2004.
Over the last couple of weeks we have been experiencing problems connecting to any Microsoft associated site. This included windows update sites and windows online sites.
Initially I thought that ISA was to blame but I have discovered that any URL that is associated with antivirus software is also blocked.
Has anyone come across this problem? Can anyone suggest which virus may be to blame?
Thanks in anticipation
Sharks 2010