Lync 2013 and Macbook Pro (can not complete the call ) on audio and video call

Question

hi everyone ,
we installed lync2013 server on windows 2012 server .Windows client working perfectly without any problems but we have some MacBook pro (maverick) with lync 2011 installed (14.0.8) .Mac clients can log in , make Instant messaging but can not make audio and
video calls at the moment.When  I had done some logging on lync server , I ifigured out the following error message  which is
"Start-Line: SIP/2.0 401 Unauthorized"
TL_INFO(TF_PROTOCOL) [LYNCFE\LYNCFE]15EC.26C8::05/30/2014-13:08:46.224.00000BF4 (SIPStack,SIPAdminLog::ProtocolRecord::Flush:ProtocolRecord.cpp(265)) [3440658878]
Trace-Correlation-Id: 3440658878
Instance-Id: 10DF1
Direction: outgoing;source="local"
Peer: 10.45.40.22:54285
Message-Type: response
Start-Line: SIP/2.0 401 Unauthorized
From: <sip:[email protected]>;tag=118c2f6503;epid=1dac663933
To: <sip:[email protected]>;tag=59BF4D7B62264F8A815140BEC75A72BC
Call-ID: b50d1d78ea20324eb00dbe3ed316c4b6
CSeq: 2 INVITE
Via: SIP/2.0/TLS 10.45.40.22:3540;received=10.45.40.22;ms-received-port=54285;ms-received-cid=243800
Content-Length: 0
$$end_record
any ideas related with this error  ???
1-I had tried 3 different mac book with 4 different user account
2-Fresh installed lync 2011 on each MacBook ,

Answer 1

Hi,
Please try to clear all preferences for Mac Lync.
You can do as following steps in the link:
http://www.unicom.iu.edu/kb.php?docid=bave :
1.  Quit Lync for Mac.
2..In your Home folder, open the Library folder. Note that Mac OS X 10.7 and later hides your Library folder. To access it:
       1. Press Command-Shift-g, or from the Go menu, select Go to Folder... .
       2. In the Go to Folder drop-down window, enter ~/Library, and click Go.
3.  Remove the following files from your Library folder:
          /Users/username/Library/Preferences/com.microsoft.Lync.plist
          /Users/username/Library/Preferences/ByHost/MicrosoftLyncRegistrationDB.xxxx.plist
          /Users/username/Library/Logs/Microsoft-Lync-x.log (This file is present only if you turned on Lync Logging.)
          /Users/username/Library/Logs/Microsoft-Lync.log
4.  In your Documents folder, remove the following:
          /Users/username/Documents/Microsoft User Data/Microsoft Lync Data
5.  Optionally, also remove Microsoft Lync History:
          Users/username/Documents/Microsoft User Data/Microsoft Lync History
          Note: This optional step will delete saved conversations. For Mac users, the conversation history is not saved to the Exchange account, but instead is saved locally
to the Mac.
6.  Open Keychain Access from the /Applications/Utilities folder:
     1. Delete any keychains on the left that look like the following, where emailaddress is your email address: 
OC__KeyContainer__emailaddress
     2. In your Login keychain, delete the following, where emailaddress is your email address: 
emailaddress.cer
7.  In the /Users/username/Library/Keychains folder, delete all files that look like the following, where emailaddress is your email address: 
OC__KeyContainer__emailaddress  
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.
Best Regards,
Eason Huang
Eason Huang
TechNet Community Support