Lync 2013 – Sign in issue

The symptoms for the issue manifest themselves as attempting to log in to the Lync client but it sits there as if it is trying to authenticate but doesn’t move from that point.

You will need to ensure your PC has updated to the latest version in order to sign in correctly by installing the Sign-On Assistant or installing Windows Updates.

 

Cannot sign in to Lync. You may have entered your sign-in address, user name, or password incorrectly, or the authentication service may be incompatible with this version of the program. If your sign-in information is correct and the problem persists, please contact your system administrator.
Wrong version of the Lync 2010 or Lync 2013 client Client

Fix Lync client-side issues

To resolve most client-side issues, start by making sure that the computer meets the minimum system requirements for both Lync 2010 or Lync 2013, in addition to Office 365. Additionally, make sure that all the necessary applications are configured correctly and are up to date.

  1. Check to make sure that the computer meets all the requirements:
  2. If you’re using Windows XP or Windows Vista, install the latest version of the Lync 2010 client from the Office 365 portal.
    • Run Office 365 Desktop Setup after you install Lync 2010. Office 365 Desktop Setup tells you whether your computer meets the minimum system requirements for Office 365. It also installs software and updates that are required to connect to Office 365.
  3. If you’re using Windows 7 or Windows 8, install the latest Lync 2013 client from the Office 365 portal by installing the latest version of Microsoft Office.
  4. After you install the latest version, enable automatic updating on the computer to make sure that Lync and Office are always up to date. Or, go to the Microsoft Update 

    website regularly to install the latest updates.

  5. If you still can’t sign in, go to the next section to delete sign-in information.
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