Sep 01, 2016 Lync 2011 for MAC error 'Sign in to Microsoft Lync failed because the service is not available or you may not be connected to the Internet'. Oct 21, 2013 I am unable to login on Lync for mac 2011. I have created a fresh office 365 account for this purpose. Also I have set internal/external servernames to 'sipdir.online.lync.com:443'. Even though Lync 2010 and Lync for Mac 2011 can read the UCS contact list, they can’t change contacts or groups in the UCS. Therefore, users who are enabled for the UCS can't change their contacts list from Lync 2010 and Lync for Mac 2011. Apr 12, 2012 Original Title: 'lync fails to login' Lync login on mac client fails wit the error: Sign in to Microsoft Lync failed because the service is not available or you may not be connected to the internet.
This article describes how to do a clean uninstallation of Microsoft Lync for Mac 2011.
To connect Lync for Mac 2011 to Skype for Business Online in Office 365, you must have Lync for Mac version 14.0.6 or a later version installed. If you use a version that's earlier than version 14.0.6, you may have problems when you sign in to Skype for Business Online because earlier versions have issues that prevent authentication to Skype for Business Online.
To cleanly uninstall Lync for Mac 2011, follow these steps:
Note
You may be able to avoid uninstalling Lync for Mac 2011 if you create a new profile on the Mac. If you contact Microsoft technical support, you may be asked to create the new profile as a troubleshooting step. If the issue is resolved by creating the new profile, it will be determined that the issue was caused by a corrupted profile.
Log on to your computer by using administrative credentials.
Exit Lync if it's running.
Drag the Lync application to the Trash.
To remove your existing Lync preferences, delete the following files:
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Users/username/Library/Preferences/com.microsoft.Lync.plist
Users/username/Library/Preferences/ByHost/MicrosoftLyncRegistrationDB.xxxx.plist
Users/username/Library/Logs/Microsoft-Lync-x.log
Note This file is present only if you turned on Lync Logging.
Users/username/Library/Logs/Microsoft-Lync.log
To remove all Lync files from your computer, delete the following folders in the Users/username/Documents/Microsoft User Data folder:
Note
If you delete the Microsoft Lync History folder, you delete all conversations that are saved in the Conversation History.
In the Applications/Utilities folder, open Keychain Access.
See the following table for more information about the path locations that are used in Lync for Mac 2011.
Folder path | Description |
---|---|
Users/Home Folder/Documents/Microsoft User Data/Microsoft Lync Data | Contains information about the users who have logged into Lync for Mac 2011 on this user account. |
Users/Home Folder/Documents/Microsoft User Data/Microsoft Lync History | Contains conversation history for the user currently logged in. |
Users/Home Folder/Library/Preferences/com.microsoft.Lync.plist | Contains application preferences for Lync. |
Users/Home Folder/Library/Caches/com.microsoft.Lync | Contains server names and endpoints from previous connections to Lync servers. |
To view the Lync for Mac 2011 deployment guide, go to the following Microsoft website: Lync for Mac 2011 Deployment Guide.
Be same as. The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, about the performance or reliability of these products.
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