So when I install this update, 2781267 Update Rollup 1 for Windows Server 2012 Essentials, all of the devices/clients go offline in the server and are not connected on the client side dashboard.
All of the system have an established connection to the server via TCP port 6602:
TCP 172.x.x.12:6602 10.x.x.71:51745 ESTABLISHED
TCP 172.x.x.12:6602 10.x.x.72:49276 ESTABLISHED
TCP 172.x.x.12:6602 10.x.x.73:55030 ESTABLISHED
TCP 172.x.x.12:6602 10.x.x.74:57116 ESTABLISHED
TCP 172.x.x.12:6602 10.x.x.171:49187 ESTABLISHED
TCP 172.x.x.12:6602 172.x.x.25:25234 ESTABLISHED
TCP 172.x.x.12:6602 172.x.x.63:50090 ESTABLISHED
TCP 172.x.x.12:6602 172.x.x.125:54237 ESTABLISHED
The KB article says there is a client side update, 2781268 Client-side package of Update Rollup 1 for Windows Server 2012 Essentials , that comes from the updated server, but I don't see how it is pushed to the clients. I check the clients and it isn't installed.
From the KB:
"After you apply this update rollup, the client-side package is installed on all client computers automatically. " But that doesn't appear to be happening.
Any ideas?