New solution: System Center Mobile Device Manager 2008 SP1 device certificate renewal request fails after 12 months

After being enrolled for a year, a System Center Mobile Device Manager (SCMDM) managed device may fail to renew its client certificate.  As a result it will fail to connect to the SCMDM VPN successfully. Additionally, the issuing Certificate Authority Application Event Log contains a warning similar to the following: Event Type: Warning Event Source:…

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Group Policy setting “Code Word” for System Center Mobile Device Manager 2008 is not correctly applied to Windows Mobile 6.1 mobile devices when the policy is Disabled

When you disable the Group Policy setting Code Word by using Microsoft System Center Mobile Device Manager (MDM) 2008 Group Policy management functionality, some Windows Mobile 6.1 mobile devices may continue to use the previously set code word. This group policy setting affects this Windows Mobile registry key when applied to the device: HKEY_LOCAL_MACHINE\Comm\Security\LASSD\CodeWord When…

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The Group Policy setting “Code word frequency” for System Center Mobile Device Manager 2008 is not correctly applied to Windows Mobile 6.1 mobile devices when the policy is “Disabled”

When you disable the Group Policy setting Code word frequency by using Microsoft System Center Mobile Device Manger (MDM) 2008 Group Policy management functionality, some Windows Mobile 6.1 mobile devices may continue to ask the user to enter a code word after a number of incorrect password attempts. This group policy setting affects this Windows…

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SCMDM SP1 Support for Virtualization

As you may know, with the Service Pack 1 release of SCMDM we introduced support for virtualization of our server roles.  This allows you to run the Windows Server 2003 x64 guest OS in a Hyper-V environment.  We wanted to clarify that this applies to the virtualization of the Device Management and Enrollment Server SCMDM…

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Collecting large amount of device inventory information during OMA session causes MDM server to timeout

Here’s an issue we run into every now and then so I thought it might be worth a mention here.  If you’re noticing GP and software distribution delivery failures then this may be your issue: ======== Issue: Collecting large amount of device inventory information during an Open Mobile Alliance (OMA) session may cause the System…

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SCMDM: Enrollment fails with "Unknown error in Enrollment service: System.ArgumentNullException: Value cannot be null"

Here’s another MDM enrollment failure issue we ran across recently that’s caused by the CA not being available when the SCMDM Enrollment Service starts.  Fortunately the solution to this one is pretty easy: ======== Issue: Enrollment fails and the following event is logged on the Enrollment Server: Unknown error in Enrollment service: System.ArgumentNullException: Value cannot…

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SCMDM: Mobile Device Manager setup error: "Failed to determine status of MDM databases on SQL instance"

Here’s one more MDM Service Pack 1 issue for you, this one involving a setup error you might run into when upgrading: ======== Issue: Upgrading to System Center Mobile Device Manager 2008 SP1 fails with the following message: Failed to determine status of MDM databases on SQL instance ‘<instance_name>’. Setup will now roll back all…

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SCMDM: Enrollment fails if a port other than 443 is used for the Enrollment Service

Here’s another SP1 issue that we came across.  If your server and client logs indicate that Enrollment failed because it could not resolve the Enrollment server URL and you changed the port then this may be your issue: ======== Issue: The server and client logs indicate that enrollment failed because it could not resolve the…

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SCMDM: Set-EnrollmentPermissions returns "Error encountered when delegating container..."

Here’s another MDM SP1 issue for you.  This one involves the Set-EnrollmentPermissions command and an error you can receive if SCMDMEnrollmentServers has full permissions on the specified OU: ======== Issue: When running the Set-EnrollmentPermissions command you may receive the following error: Set-EnrollmentPermissions : Error encountered when delegating container “OU=SCMDM Managed Devices (Instance1),DC=yonaloc,DC=nttest,DC=microsoft,DC=com” permission to Enrollment…

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