ConfigMgr 2012 – KB Article 3048767 Released

Microsoft has just released the following KB Article which includes a Hotfix:

Computers that are running the SMS Agent Host service cannot establish new network connections after frequent network disruptions

Symptoms:
You have a computer that has the Microsoft System Center 2012 R2 Configuration Manager client installed. If the computer is running the System Center 2012 R2 Configuration Manager version of the SMS Agent Host service (ccmexec.exe), the computer may eventually run out of network ports and be unable to establish new network connections when the following conditions are true:
The client computer is frequently disconnected from its management point.
The client computer is restarted infrequently.
A gradual increase in the handle count of the ccmexec process is observed.
A pattern that resembles the following is recorded in the CCMNotificationAgent.log file on the client computer.

Note This log example is truncated for readability and shows only the repeated patterns.

Receive signin confirmation message from server, client is signed in.
Connection is reset
Failed to receive buffer from server with err=0x80090304.
Failed to receive expected response from server with error 80090304.
Sleep 38 seconds to restart client…
…
Receive signin confirmation message from server, client is signed in.
Connection is reset
Failed to receive buffer from server with err=0x80090304.
Failed to receive expected response from server with error 80090304.
Sleep 48 seconds to restart client…

Full details at:
https://support.microsoft.com/en-us/kb/3048767