In the screenshot below, you can see that the package was signed with a valid Developer ID certificate (hence the badge in grey), issued to a third-party developer by Apple, which allows the developer to distribute their software without having to use the Mac App Store. Check for 3rd party apps mac os.

Feb 07, 2017  If Lync is installed on your computer but the meeting opens in Lync Web App, it usually means that Internet Explorer is not your default browser. To fix this issue, you have two options: Make Internet Explorer your default browser, and then try joining the meeting again. Mar 20, 2014  User can log in successfully to MS Lync but the option to share desktop is never highlighted. I looked at all the settings for another user and it works for them. It's web based program we don't have a Lync server, we get invite from our clients to open up session and but they can share desktop with us, but this particular user can't. Mar 14, 2017  In the Microsoft Lync for Mac 2011 Update volume window, double-click the Lync for Mac 2011 Update application to start the update process, and then follow the instructions on the screen. If the installation finishes successfully, you can remove the update installer from your hard disk. Be sure to test different client types (e.g. The Lync Web App, the Outlook Web App integration if it is configured). Also be sure to watch-out for certificate errors on the Lync client side. If the Lync certificates and DNS records were not updated properly, there will be certificate warnings and errors presented to the user. End-User Communication. Apr 01, 2014  I have Microsoft Office365 though my company. I have Outlook for Mac 2011 and Lync for Mac 2011 installed. Firefox is set as my default browser. When I click Join Lync Meeting in Outlook, Firefox pops up, I log into Office365, and join the meeting in Lync 2013 Web App just fine. I unmute myself and folks can hear me, so audio is working fine.

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• Download Lync Web App

I had some strange problems with Skype and Office 2016, too.

The solution was easy: Office 2016 (Professional Plus in my case) installed its own Skype for Business software, which block the execution of the 'SkypeForBusinessPlugin.msi'

When you open 'Apps & Features' and choose 'Modify' , you should see 'Skype for Business' in the list.

Once you removed that feature, you should be able to run the web plugin, that usually is deployed, when you open a meeting.

Download Lync Web App

Maybe that link helps with getting the right installer:
Trouble installing the Skype for Business Web App plug-in?

Hope it helps ..

Hello,

I am having the same issues. I run Office 365 and Lyn 2013 does not recognize the camera. I have went around the world with this issue. From what I am being told is it is a Lync issue. Mine worked fine before OS Mavericks. When I upgraded, this is when I started having issues. However, if you ise Lync 2011, there is a fix by Microsoft. I downloaded it and now that part works fine. I am running Windows 8.1 on Parallels. Everyone has pointed the finger at each other. Search for Update for Lync 2011 and at least you will be able to use it on Mac.

Feb 13, 2014 7:40 PM