Norton disconnects World of Warcraft every hour

I'm having a problem with my Norton Antivirus Auto-protect.  It disconnects me from certain games and programs every hour starting from when the computer first turns on.  I've narrowed it down to Norton, because when I disable the Antivirus Auto-protect I no longer get disconnected.  I tried to just turn off certain features, such as the Automatic LiveUpdate, but that didn't fix the problem.

 

What are some other troubleshooting actions I should take?  I want to have AV software while I play.