Update 2016/08/16 - This only happens on Windows 7, for Windows 8.1 and Windows 10 we don't need to change the Proxy PAC file. Recently we received some reports saying that Lync 2013 and Skype for Business 2015/2016 clients were trying to use a Proxy Server for lyncdiscover and lyncdiscoverinternal URLs when the Proxy was configured using a … Continue reading Lync/SfB Client tries to use proxy server instead of direct connection when using Proxy PAC on Windows 7 →