DONT INSTALL LAST LYNC 2013 UPDATE (5.4) ON IPHONE (7.1,7.1.1) UPDATE: Only in 7.1 iOS version

We found that the last lync update (5.4) is not working with iOS version (7.1,7.1.1). It’ll show that can not find the server to login or a that exist a certificate problem.

We reinstalled Lync version (5.3) to Loggin.

UPDATE: Upgrade iOS version to 7.1.1 fix it.

While MS fix that, we recommend DONT INSTALL LYNC UPDATE.

Regards.