(I have a small environment - only 1 SCCM server [primary] and 200 servers managed)

I upgraded from CU3 to CU4 last week and I cannot get my WSUS to sync all of the updates for April 2015. I also upgraded my test server and it is syncing fine.

I did some digging yesterday and found out that even tho the site server upgraded (I only have one SCCM server), the SQL update failed because I did not have proper permissions. I've since had a DBA run the update.sql file included with the CU (found at: %Program Files%\Microsoft Configuration Manager\hotfix\KB3026739)

I restarted my SCCM server again this morning and tried running multiple syncs with Microsoft and it is still pulling in nothing. 

I am not getting any errors in WSUS, wsyncmgr.log, WCM.log, or the change.log for wsus. Everything just looks like it attempted to sync - found nothing - then ended the sync successfully.

I had one of the networking guys look at the firewall and he says its getting thru and establishing a connection - but it looks like MS is terminating the connection? I cannot see anything that would indicate this in my logs. Here is what he sent me: http://i.imgur.com/znOvxEN.jpg

Now, to make things even more interesting. In the many many attempts I have made over to the last two days to get SCCM/WSUS to sync April's updates, it has worked in small amounts.... it once expired 16 updates and another time pulled in 2 updates released on 4/15/15 (but only 2!). I have my sync settings set up exactly like my test server which, again, is working fine. 

As always, any help is appreciated!

*EDIT/Update*

EDIT: 

The method listed in this thread ended up working for me

• Edited by atom_acres 12 hours 27 minutes ago

It looks like most of my SCCM syncs are just deltas. I scheduled one which forced it to run a full sync. It appears that this is running through the list of updates that wsus has but I believe this catalog is out of date. I tried manually syncing WSUS and also scheduling it and it is still not pulling in any new updates. The WSUS log is not really giving me much (change.log)

sounds like there might be a bigger issue with WSUS and Microsoft?

https://social.technet.microsoft.com/Forums/en-US/6dbe893b-39f5-4367-902d-678a2a897b9b/wsus-not-syncronizing-aprils-updates?forum=configmanagersecurity

https://social.technet.microsoft.com/Forums/en-US/a323d2f9-a1ac-48e3-978a-054915c3f1ea/wsus-april-2015-updates-not-synced-from-microsoft?forum=winserverwsus