Client has Lync 2011 for Mac on a MacBook running mavericks and it crashes right after I log in and am getting the EXC_BAD_ACCESS error.

I have tried all of the suggestions I could find on the internet already and nothing has worked. I have even tried the RTM, SP2, and 14.07 version. I would try other versions but can't find them anywhere to download

Here's the kicker - they have Lync 2010 (all latest updates installed). If I log into our environment which is Lync 2013 using a test account it works just fine. Also if I log in using a test account from a different environment that also has Lync 2010 it also works just fine. So it seems it is some kind of interaction between the client and their server environment that is causing the crash and not something locally on the client machine. None of the logging I have done shows anything of value.

Does anyone have any ideas why it would work using other environments but not this one?

• Edited by Fred Saber Wednesday, April 09, 2014 7:04 PM

I am not sure I understand your meaning by the last second paragraph.

Did you mean that you can use the same Lync 2011 for Mac on the same computer to sign in successfully to connect other Lync Server?

Please try to create a new user account, then login with the new user account, sign in with Lync 2011 for Mac again.

Did you mean that you can use the same Lync 2011 for Mac on the same computer to sign in successfully to connect other Lync Server?

That is exactly what I mean. On the same computer using the same client I can successfully connect to two other Lync server systems and it doesn't crash at all. So what on the Lync server of this one system would cause it to crash?

Please try to create a new user account, then login with the new user account, sign in with Lync 2011 for Mac again.

I tried that as well and I got the same problem with the client crashing right after I si