Enable Active Sync Devices

Hi

We have a big Problem with Exchange 2010 SP1 and all  Apple Devices. After some Houres or days the ActiveSyncDeviceAccessRule change the state from allow to block. I Post this Problem her but at moment without any result.

 Now I change back the role with this command

Get-ActiveSyncDeviceAccessRule | Where {$_.AccessLevel -eq 'Block'} | Set-ActiveSyncDeviceAccessRule -AccessLevel:Allow

But sometime are different or all user also blocked.

With this command I can see witch user is blocked.

Get-ActiveSyncDevice | where {$_.deviceaccessstate -eq 'Blocked'} | ft DistinguishedName

With this command I can activate one device

Set-CASMailbox –Identity david@domain.com –ActiveSyncAllowedDeviceIDs {ApplGB015M11111,Appl88923Y22222}

But I was not able to do that for all blocked Users with one Script.

 Can anybody help me.

 Thanks in advanced.

Kind regard

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