ActiveSync Failing When testexchangeconnectivity.com Passes?
I came across this issue recently, where we migrated from a hosted Exchange 2010 server to an on-site Exchange 2013 server and Autodiscover would not fill out the server information on ActiveSync devices. Setup is as follows: Single Exchange 2013 combined CAS/Mailbox/Front/Backend server Standard SonicWALL with normal NAT...