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Active sync to mobile phones stopped working

Last Modified: 2013-11-20
We moved a 2003 exchange email server to another location and changed the mx records to point to the new location.  The email and web email all are working.  I am getting a certificate error on the website and the mobile devices, however that does not seem to be the problem. The mobile phone seem connect to the exchange server and send back a message that the certificate has a problem. The name of the site does not match the name of the certificate. I say continue and then get unable to connect to server.
I go into iis Microsoft-server-activesync and when a change anything authentication methods I get different errors (this tells me that my phone is getting to the server).  The settings I have now in directory security and the authentication access control are basic authentication checked.
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