Hello!<o:p></o:p>

Everything worked fine. We changed internal URLs on Exchange server to match external (split brain dns). All DNS records exist in domain. After that when lync client starts user cant set status to online. Other users see the status offline.<o:p></o:p>

Lync favorites contacts doesn't load also.<o:p></o:p>

We rolled back exchange changes for EWS. Nothing changed.<o:p></o:p>

Strange thing, that for some users everything work fine and the status is online.<o:p></o:p>

I don't understand this behavior of lync. <o:p></o:p>

Where can I find the solution?

Thank you.

Solved.

The problem was connected to rtcxds database log full.

http://www.confusedamused.com/notebook/lync-2013-and-the-rtcxds-16-gb-transaction-log-limit/ 

Backup rtcxds log solved the issue. 

• Marked as answer by Mike Solovey 15 hours 57 minutes ago

Solved.

The problem was connected to rtcxds database log full.

http://www.confusedamused.com/notebook/lync-2013-and-the-rtcxds-16-gb-transaction-log-limit/ 

Backup rtcxds log solved the issue. 

• Marked as answer by Mike Solovey Monday, June 08, 2015 3:27 PM

Solved.

The problem was connected to rtcxds database log full.

http://www.confusedamused.com/notebook/lync-2013-and-the-rtcxds-16-gb-transaction-log-limit/ 

Backup rtcxds log solved the issue. 

• Marked as answer by Mikhail_Sol Monday, June 08, 2015 3:27 PM

Solved.

The problem was connected to rtcxds database log full.

http://www.confusedamused.com/notebook/lync-2013-and-the-rtcxds-16-gb-transaction-log-limit/ 

Backup rtcxds log solved the issue. 

• Marked as answer by Mikhail_Sol Monday, June 08, 2015 3:27 PM