After migrating Exchange server 2007 to another exchange server 2007, outlook anywhere not able to configred with new server

Dear Team,

We are facing issue about after migrating Exchange server 2007 to another exchange server 2007, outlook anywhere not able to configured with name of new server, when we put old server name then it will redirect to new server and it gets configured and rest of the services working fine.

Regards,

Prashant