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  Hi,

  It sounds like there are ohphaned OCS attributes still present on AD. You can use following link to find the attributes and clean them.

  http://blogs.technet.com/b/markbarr/archive/2009/12/11/how-to-search-ad-for-ocs-objects.aspx

  Thanks

  Saleesh

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  If answer is helpful, please hit the green arrow on the left, or mark as answer.

  • Proposed as answer by Kent-Huang Wednesday, January 9, 2013 8:07 AM
  • Marked as answer by Kent-Huang Wednesday, January 9, 2013 8:07 AM

  Wednesday, January 2, 2013 11:02 AM

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  Hi,

  Other blogs how to remove OCS or Lync attributes for your reference:

  http://blogs.perficient.com/microsoft/2007/10/renaming-an-ocs-standard-server/

  http://blog.ucmadeeasy.com/2010/11/09/lync-server-2010-active-directory-references-and-how-to-remove-them/

  Note: Microsoft is providing this information as a convenience to you. The sites are not controlled by Microsoft. Microsoft cannot make any representations regarding the quality, safety, or suitability of any software or information found there. Please make sure that you completely understand the risk before retrieving any suggestions from the above link.

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  Kent Huang
  TechNet Community Support

  

  • Proposed as answer by Kent-Huang Wednesday, January 9, 2013 8:07 AM
  • Marked as answer by Kent-Huang Wednesday, January 9, 2013 8:07 AM

  Thursday, January 3, 2013 6:23 AM

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  Have you ran the "Merge OCS 2007 ..." in the topology builder again after uninstalling the old OCS?

  You need to run it again to let Lync know you have removed it.
  

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  Hugo Picão
  MCITP:EA / MCTS:OCS / MCTS:W2K8 / MCSE: 2003
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  Friday, January 4, 2013 4:35 PM

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