Exchange DAG Problem After Windows Patch Deployment

Hi Experts, we had recently deployed patches to one of our Exchange 2010 SP1 mailbox servers, which is part of a DAG. Now, the database copies on the patched server won't mount. Below are the patches that were deployed immediately before the problem showed up:

a.       KB2667402
b.      KB2665364
c.       KB2641653
d.      KB2639308
e.       KB2621440
f.       KB2608658

Checking the event logs we have found the following:

Log Name: Application
Source: MSExchangeRepl
Date: Date
Event ID: 2060
Task Category: Service
Level: Error
Keywords: Classic
User: N/A
Computer: Computer
Description:
The Microsoft Exchange Replication service encountered a transient error while attempting to start a replication instance for mailbox database\mailbox server. The copy will be set to failed. Error: The NetworkManager has not yet been initialized. Check the event logs to determine the cause.

Googling has led us to http://support.microsoft.com/kb/2629777, which suggests Exchange 2010 SP2 with RU1 is needed to resolve the problem? Can somebody shed some light on this?

Thank you.
LVL 1
junyapAsked:
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PYThePorkpieCommented:
As you are seeing the exact problem they mention I would go ahead and install the sp2 ru1 patch. I am running an 8 member DAG and loaded this patch with no issues.
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noufsCommented:
Hello, got the same problem, the SP2 solve it. (on a 3 member DAG)
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