I have updated my only server to 11.2.3.a when I try to deploy it to other
devices I get the following error.

An error occurred while downloading the update content to this device. Make
sure that this device has valid content servers configured via closest
server rules and that the content replication has occured to this devices
content server(s)

I have no blackout times set.

In loader messages on server I see the following around the same time as the
DEBUG] [4/16/13 7:30:55 AM] [] [Loader.SystemUpdateModule] [123] [] [FINER:
Update has been postponed...only directly assigned devices will receive this
update until the update is assigned to the System Update stages] [] []

Jim Koerner
Server - ZCM 11.2.3a and Internal Database on Win2008R2x64
Client - ZCM 11.2.3 and 11.2.2 on Win7SP1x64 and WinXPx32