Might have discovered part of the reason OCS 2007 R2 won't work with Server 2008 R2

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Monday, January 18. 2010

Might have discovered part of the reason OCS 2007 R2 won't work with Server 2008 R2

I know it is a work in progress but I believe that this hotfix will end up being a pre-req for installing on Server 2008 R2.

KB 975858 - An application or service that calls the InitializeSecurityContext function together with the ISC_REQ_EXTENDED_ERROR flag may encounter a TLS/SSL negotiation failure on a computer that is running Windows Server 2008 R2 or Windows 7

Specifically due to this section of the article:
For example, a Transport Layer Security (TLS) negotiation fails when Microsoft Office Communicator Server 2007 R2 is installed on a computer that is running Windows Server 2008 R2. This problem causes some functions not to work in Office Communicator Server 2007 R2.

Posted by Aaron Tiensivu in Microsoft, OCS / LCS, Server, Windows OS at 21:22 | Comments (3) | Trackback (1)

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Windows 2008 R2 support for OCS 2007 R2 - guidance
It turns out that a little while ago I had discovered part of the puzzle to getting OCS 2007 R2 working on Windows 2008 R2. Strangely, a somewhat related blog entry I made around the same time was the other piece of the puzzle. Namely, for 2008 R2 sup

Weblog: Aaron Tiensivu's Blog
Tracked: Apr 15, 22:27

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This was one if the issues I had when building
a new fe on r2. Constant cert errors with
the edge; same cert worked fine on rtm

#1 Jc on 2010-01-19 10:59 (Reply)

Have you fixed the issue by installing the hotfix?
I'm having the same issue on Win2k8R2 EE-FE and Edge in one project. I have installed the hotfix on the FE and edge and still receive error event 36888, severe warning: 10, and internal error status of 1023.
I haven't tried all functions yet, though.

#2 Heiko (Homepage) on 2010-02-05 08:38 (Reply)

Great finding!

worked like a charm for me - fixed issues with auto-attendant and subscriber-access for OCS 2007 R2 on Server 2008 R2

#3 As on 2010-04-02 05:44 (Reply)

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