Filesync is failing from my main switch CM 5.2.1 to an ESS also on 5.2.1. I'm pretty sure this is a firewall issue. Registration is OK, but filesync fails.
I think the TCP port 21874 needs to be opened up but is this the only thing taht needs to be allowed.
I think the TCP port 21874 needs to be opened up but is this the only thing taht needs to be allowed.