This issue occurs when you send or receive the first instant message (IM) in Microsoft Lync 2013 (Microsoft Skype for Business). You don't experience any delays when you send or receive subsequent IMs.
When this issue occurs, the IM may be not sent out or displayed in real-time. The period of the delay is generally 30-60 seconds.
When this issue occurs, the IM may be not sent out or displayed in real-time. The period of the delay is generally 30-60 seconds.