Hope you are doing great! I'd like some help to troubleshoot an issue I'm having with my Lync 2011 for Mac. I have the version 14.2.1 installed on my OSX El Capitan, and I'm having issues to make any calls (Lync Calls, Phone Calls, Join Online Meetings).

Here is the situation: 1 - When I'm using my Macbook at home (home wifi and no proxy), I have no issues at all. Everything works perfectly. 2 - When I'm connected to my work network (corporate wifi with a specific corporate proxy), I can sign in, message my colleagues but can't make any audio calls. The interesting thing is that I also have Skype for Business on a Windows laptop on the same work network and same corporate proxy, and everything works perfectly. So, my impression is that this is some sort of incompatibility with my Lync for Mac and my Proxy/Network settings on my Mac.

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I've tried troubleshooting, checking logs but couldn't find a solution yet. Xitel inport download. Could anyone help with that? Thank you very much! PS: I could not find the proper category for this question. There is no Office for Mac or Lync Category.

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Rodrigo Porto.