Lync 2013 Presentation/Desktop sharing

Hi All,

I have Lync 2013 CU3 Enterprise FE installed with an Edge server.  Lync users are able to share desktop and present applications.  The issue is having more than 3 users added to the conference.  It will close out the sharing.  There is no issue with just two IM users.  Has anyone experience this issue?  All Lync services are up and running.  

thanks
techopsdhlAsked:
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Jeff_SchertzConnect With a Mentor Commented:
The 2-person desktop sharing works because it's peer-to-peer yet 3 or more parties will move the call to the Lync Front End Server(s).  Make sure that you have the proper range of network ports and protocols opened between the Front End servers and the Edge internal interface.

http://technet.microsoft.com/en-us/library/gg398798.aspx
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Mohammed HamadaSenior IT ConsultantCommented:
Yes, I did last week I had migration for a client from Lync 2010 to 2013 and whenever they try to have a conference of more than 2 users the Lync client will pop an error message as following
Lync 2013 - When contacting your support team, reference error ID 51024 (source ID 242) IM Conferencing

The issue seems to be that if orphan conference directories exist, they may prevent new conferences for 2013 users. You can check for orphan directories via:
Get-CsConferenceDirectory | FT Identity,ServiceID

When you enter this cmdlet, it should result the following


Identity                                                    ServiceId
--------                                                    ---------
2                                                           UserServer:LYNCFE-FQDN.com

If you seen something different, like an old Front end or misspelled FQDN then try to remove it using this cmdlet.

Remove-CsConferenceDirectory <Identity Number> –Force

Restart the Conference service and you will be fine. also Lync clients need to exit and re-login their Lync clients.
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techopsdhlAuthor Commented:
Sorry forgot to accept solution from Jeff.  Great blog posts by the way.

thanks
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