exchange active sync cannot connect to server after migration mailbox user from exchange 2007 to exchange 2013 coexistence

Hello, everyone, my name is rafl
I have a problem with exchange 2013 active sync.
I have installed exchange 2013 coexistence with legacy exchange 2007, I have to migrate user mailboxes: user1@domain.com from exchange 2007 to exchange 2013.

but any problem with active sync connection on the mobile device after moving mailbox user. I reconfigure the exchange ActiveSync external connection domain (latest.domain.com) on mobile device replacing legacy exchange ActiveSync external connection domain (legacy.domain.com)

the process of moving mailboxes successfully without error.
Access OWA for exchange 2007 and exchange 2013 is running normally
access mail from Outlook running normally
Certificate request has been installed and has no problem with it
The OWA virtual directory is configured for internal and external connections and different from the legacy exchange
The autodiscover virtual directory is configured for internal and external connections and different from the legacy exchange
ActiveSync virtual directory is configured for internal and external connections and different from the legacy exchange
user mailboxes are still on exchange 2007 is not problematic.

only problem with Exchange Active Sync on mobile devices, where I set up an email with android, iphone, windows phone. the error message: cannot connect to the server.

but, if I create a new user and create user mailboxes directly in exchange server 2013, ActiveSync can run without error on mobile device, access through OWA, MsOutlook, Outlook Anywhere also run normally.

only the results of user migration from exchange 2007 to exchange 2013 which is troubled with exchange ActiveSync connection.

any ideas for this problem, and what should I check on the exchange server ..?