Test-*Connectivity commands don't work

I have a coexistence environment (2013 SP1 CU6, 2007) in two sites. I create a test user on each site. When run any of Test-*Connectivity commands like (Test-OWAConnectivity, Test-ECPConnectivity) I got the following errors:

Test-OWAConnectivity from Passive Copy Mailbox Server (***MBX01):
-----------------------------------------------------------------
Url                         :
UrlType                     : Unknown
ClientAccessServerShortName : ***MBX01
Scenario                    : Reset Credentials
ScenarioDescription         : Reset automated credentials for the Client Access Probing Task user on Mailbox server mailbox_server.Domain.com.
PerformanceCounterName      : Logon Latency
Result                      : Failure
Error                       : [Microsoft.Exchange.Monitoring.CasHealthStorageErrorException]: An error occurred while trying to access mailbox mailbox_server.Domain.com, on behalf of user
                              Domain.com\extest_a6684afa10864

                               Additional information:
                               [Microsoft.Exchange.Data.Storage.WrongServerException]: The user and the mailbox are in different Active Directory sites..
UserName                    : extest_a6684afa10864
WARNING: No Client Access servers were tested.



Test-OWAConnectivity from Active Copy Mailbox Server (***MBX02):
----------------------------------------------------------------
WARNING: The test couldn't test the internal URL of this virtual directory, because the InternalURL property isn't set.
Url                         :
UrlType                     : Internal
ClientAccessServerShortName : ***MBX02
Scenario                    : Logon
ScenarioDescription         : Sign in to Outlook Web App and verify the response page.
PerformanceCounterName      :
Result                      : Skipped
Error                       : The test couldn't test the internal URL of this virtual directory, because the InternalURL property isn't set.
WARNING: No Client Access servers were tested.



Test-OWAConnectivity from CAS Server (***CAS01):
------------------------------------------------
WARNING: The test couldn't test the internal URL of this virtual directory, because the InternalURL property isn't set.
Url                         :
UrlType                     : Internal
ClientAccessServerShortName : ***MBX02
Scenario                    : Logon
ScenarioDescription         : Sign in to Outlook Web App and verify the response page.
PerformanceCounterName      :
Result                      : Skipped
Error                       : The test couldn't test the internal URL of this virtual directory, because the InternalURL property isn't set.
WARNING: No Client Access servers were tested.