ActiveSync issue

We are migrating and Exchange 2003 server to 2010.  The 2010 CAS array consists of two servers.  We tried to switch external name, webmail.contoso.com, from the current 2003 OWA server to the 2010 CAS array.  Outlook Web Access worked perfectly.  We tried OWA from Windows 7, Windows 8, Mac, Windows Server 2008 R2, and Windows server 2012 R2.  All worked perfectly.

The problem we ran into was the smartphones.  None of the smartphones would sync.  We tried setting up new accounts on smartphones.  We were not able to setup the accounts on the phones.  We got an account error.  We tried many more times the password lockout policy would allow and none of the accounts were locked out so I think the requests aren't even reaching the domain controllers.

Thanks for your help.

Bill
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labdunnAsked:
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labdunnConnect With a Mentor Author Commented:
I had to call Microsoft on this one.  The problem turned out to be a setting on the Exchange 2003 server.  Thanks for you thoughts and suggestions.
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jerseysamCommented:
Have you read article:


http://www.experts-exchange.com/Software/Server_Software/Email_Servers/Exchange/Q_26451297.html

1. Disable Activesync on the Exchange account.
2. Uncheck inheritable permissions
3. Delete CN=ExchangeActiveSyncDevices from under my user container in ADSIEdit
4. Force AD Replication
5. Enable Activesync on my Exchange account
6. Check Inheritable permissions
7. Force AD Replication
8. Create Exchange profile on my iPhone.
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Simon Butler (Sembee)ConsultantCommented:
The CAS Array address should NOT be used for anything other than MAPI traffic. It should not be used for web services, Outlook Anywhere, ActiveSync etc. It should also NOT resolve externally.

You should have at least two host names for the Exchange servers - a CAS Array address and a web services address. Trying to use the CAS Array address for other things will cause problems with Outlook in particular.

Simon.
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labdunnAuthor Commented:
Had to call Microsoft for a solution
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