Desktop Central agents not connecting after upgrade

Desktop Central agents not connecting after upgrade

I just upgraded Desktop Central from 10.0.0-SP-364 to 10.0.0-SP-435.  The server starts fine and I am able to login via the web UI, however none of my agents are able to connect.  If I run the agent troubleshooter, everything appears ok except antivirus.  Any ideas what would cause this and how to fix it?

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