Adding Windows 2012 R2 to Windows SBS 2011

Hi,

We are currently running a DC on SBS 2011 Standard. We just picked up Windows Server 2012 R2 and want to add it to the domain. We intend to use Server 2012 R2 as a SQL server.

We seem to be running into Windows Update issues after joining into the domain, where it wouldn't be able to check for updates (There should be a lot as it is a new install). If I leave the domain and update Windows 2012, the updates are able to be downloaded and installed without problems. Are there additional steps we need to perform to add Server 2012 R2 to SBS 2011 Standard?

Thanks.
Abraham LinAsked:
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Cliff GaliherConnect With a Mentor Commented:
If you are using the WSUS component of SBS 2011 then you need to go into WSUS and enable the new product category for 2012 R2, as that did not exist when SBS shipped and therefore is not enabled by default.

Note that doing so will probably break WSUS integration in the SBS dashboard and you will have to manage updates via the WSUS console from here on and the dashboard will simply have an error status.
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Lee W, MVPConnect With a Mentor Technology and Business Process AdvisorCommented:
Not to mention you now need to buy Windows Server 2012 CALs.

A BETTER solution would be to use downgrade rights and install 2008R2 instead of 2012.  Your SBS CALs cover that and the WSUS services provided by the SBS server won't get broken by it.
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