Hello,

WE have Exchange 2010 running in a DAG and everything has been working fine. We have 2 Sites 2CAS and 2Mbox in each site. For some reason when I try and activate a new device from Site2 I receive and error on the CAS server in Site1 which states;

The Client Access server doesn't have the InternalURL value set for the Microsoft-Server-ActiveSync virtual directory. This prevents Exchange ServiceDiscovery from finding the MobileSyncService information for user SERVERMBOX02.domain.com. At least one Client Access server in the user's mailbox Active Directory site must have the InternalURL value set. The format for the InternalURL value is https://hostname/Microsoft-Server-ActiveSync

When I check the ActiveSync settings they are all set. I am only having this issue on adding a user that has a mailbox in Site2, if I try with a user in Site1 I dont have this problem. Does anyone have any suggestion on what might be causing the problem?

Thanks,

Gavin

Looks like this is the problem I am having http://msitpros.com/?p=1818

 

• Proposed as answer by Mike CrowleyMVP 6 hours 26 minutes ago

Related: Exchange Server Using Wrong Active Directory Site