I followed article here
to setup IIS Application Request Routing (ARR) 2.5 as a reverse proxy for Lync Server 2013 web services. I am currently unable to connect with Lync 2010 client on Android and "Lync Autodiscover Web Service Remote Connectivity Test" at testexchangeconnectivity.c
om is failing HTTP authentication test with these details:
A Web exception occurred because an HTTP 502 - BadGateway response was received from Unknown.
Date: Tue, 25 Jun 2013 15:58:51 GMT