IT Consultant Everyday Notes

Just some problems/solutions storage

Lync 2013: Prepare Current Forest task failed


I am installing Lync 2013 in AD where I already have Lync 2010 installed. Lync 2010 security groups are in a dedicated OU.


Forest Preparation failed with the following error:

Error: Existing universal groups were found in "OU=Lync,OU=Demo Security Groups,DC=XXX,DC=XXX,DC=XXX,DC=com". Specify where to create new Lync Server universal groups explicitly at the command line with the GroupDomain parameter.


Move Lync security groups to a default “Users” container in AD.

the resolution is found here:

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