![lync for mac 2011 login problem lync for mac 2011 login problem](http://files.smashingmagazine.com/wallpapers/june-15/the-amazing-water-park/nocal/june-15-the-amazing-water-park-nocal-1280x800.jpg)
![lync for mac 2011 login problem lync for mac 2011 login problem](http://files.smashingmagazine.com/wallpapers/june-15/the-amazing-water-park/cal/june-15-the-amazing-water-park-cal-1600x1200.jpg)
The service is not available or you may not be connected to the Internet".īelow is the log. I put correct credentials, it works ok on Windows, I also tried to login-in with iOS app, but on Mac (Yosemite 10.10.2) doesn't work - it just shows a message: "Sign in to Microsoft Lync failed because I have a problem signing in to Lync 2011 on Mac.