Cannot connect to VBA after MS hotfixes.

After installing Super Tuesday updates on my servers, my VBA backups are all failing with "Unable to connect to VBA emc-ba.it.endgames.local, error Cannot establish session to VBA."   And that's literally it.  I go to the logs for that job and that's also all it says.  All backups were working so, there's really not much else it could be.  There is not firewall between networker and the VBA or the ESXi server.  When I snoop the connection through WireShark, I see traffic between the two on port 8543, so I'm rather mystified here.  I'm in the process of reviewing all the updates to see what might be likely, but I'm hoping someone may have already seen and resolved this, even though I didn't see anything in the forum.

This is Networker 8.1.3 on Windows 2012 with VBA version1.0.3.6.