SUP SYNC Error 0X80131509

[Semperfi4000]

I have an issue, I can not figure out..

Originally, I had SUP obtain windows updates directly from Microsoft. Things worked very well.

We purchased Retina CS to mitigate WIndows & 3rd Party updates.

 

So, for this to work, we had to point SUP to an existing Upstream WSUS Server.

 

The Architecture is as follows;
SCCM Server 2012 - 2012 server, has a Back-End SQL Server 2012 Server.
The SCCM Server SUP connects to the Upstream WSUS Server [2008 server R2], that has a Backend 2008 SQL Server
The SCCM Server 2012 is a Replica,

 

 

WSYNCMGR Log:

 

Sometimes in the WSYNCMGR, I get succeeded; mostly I get Failed as show here..

 

Sync succeeded. Setting sync alert to canceled state on site NET $$<SMS_WSUS_SYNC_MANAGER><08-08-2013 23:04:49.592+300><thread=5944 (0x1738)>

Sync failed: The operation has timed out. Source: Microsoft.UpdateServices.Internal.DatabaseAccess.ApiRemotingCompressionProxy.GetWebResponse $$<SMS_WSUS_SYNC_MANAGER><08-09-2013 06:17:09.689+300><thread=5944 (0x1738)>

 

 

Software Update Point Synchronization Status

 

Synchronization source: BR-WSUS

Catalog Version: 949

Synchronization: failed

Code: 0X80131509

 

Thank you for your help..