It doesnt get any more basic:
2 Windows 2012 on a site-to-site vpn same domain. Ex. server1.contoso.local and server2.contoso.local
Both servers are Domain Servers w/ Exchange 2013 CAS roles
I have configured mailbox databases on both servers and configured users to the database of the server local to them.
I have configured a SRV internally for the _autodiscover
Both servers exchange settings for owa, autodiscover, ecp... all point to their local address. Ex: server1 = server1.contoso.local
My problem is Domain Authenticated users on the internal networks MS Outlook will change their Exchange proxy settings to the wrong server. Ex: user1 on server1 but proxy setting has changed to server2.contoso.local
I can manually change the setting back to the correct server but every so often it will switch them to the other server?