Upgraded our Commserv and Mediaagents to SP12 and it hasn't been fun. First the install would fail on the mediaagents but after multiple attempts we got it. First backup test failed and things went south after that.
The main issue I have right now is mediaagents seem to have lost their network bindings for port 8403 and jobs are failing because of that. In our environment we have tons on DIPs configured. Our MAs have a default interface and many sub interfaces. The only interface that seem to work is the default interface. Clients are configured to use a local interface on their subnet via specific DIPs. Any backup job with a client that resides on one of the sub interfaces does not work. In some cases I can get cvping on port 8403 and some I can't. But either way the backup job fails. One MA was resolved as support discovered it was a Windows update that broke the bindings. That culprit update is not installed on all MAs.
Attached below is the error that I get when trying to cvping on port 8403
I confirmed the MA is listening on port 8403 on all interfaces. There is no Windows filewall in place to block the connection. This was all working before SP12 install. I've rebooted the MAs countless times. I've disabled and reenabled interfaces and nothing works.
I have this case all the way in Dev support right now. but any help is greatly appreciated.