SCCM ConfigMgr MP Deinstallation failed Client Registration Issues ConfigMgr

SCCM ConfigMgr MP Deinstallation failed Client Registration Issues ConfigMgr. In ConfigMgr/SCCM, Management Point issues are common. It makes a bit interesting when we had a client registration issue after completing the Task Sequence.

The other functionalities of MP, like delivering new policies to the existing clients, were working fine, so the only issue was client registration. The client completed the Task Sequence successfully; however, it was not getting registered to ConfigMgr Management Point.

SCCM ConfigMgr MP Deinstallation failed Client Registration Issues

I’m not an expert in the OSD/TS part of SCCM / ConfigMgr, so I assumed that the client would get registered with SCCM 2012 MP during TS. However, it seems this is not true?. The SCCM client is registered with MP only after Task Sequence completion.  

To prove this, I had checked SmsTs.log, AppEnforce.log, and ClientIDManagerStartup.log. In the ClientIDManagerStartup.log, I could see the following entries.

Patch My PC
[RegTask] - Client registration is pending. Sending confirmation request for GUID:6CE6E0PC-4584-4DA1-BE52-D3EBFB29E4C0 ...
[RegTask] - Sleeping for 1920 seconds ... 

Client Registration Issues ConfigMgr

Then I tried to read around to learn about the background process of the client registration and policy retrieval during Task Sequence. During an SCCM OSD Task Sequence, the SCCM client is placed in provisioning mode. So what is the provisioning mode?

The client does not pick up policy from the MP in provisioning mode. This is done, so that advertised programs, software updates, and tasks targeted to existing client PCs do not run until the Task Sequence completes. So until the client is provisioning mode, it won’t register with SCCM Management Point.

More details on provisioning mode http://blogs.technet.com/b/configurationmgr/archive/2010/09/13/solution-after-a-configmgr-2007-osd-task-sequence-completes-the-client-may-not-automatically-pull-down-policy.aspx

So back to the original issue, the SCCM ConfigMgr client is not getting registered with MP. I tried checking the following logs @ remote MP Site System.

MP_ClientID.log – Nothing much related to the problematic client  :

Parse a client ID request Send reply message to the client
SMS_UniqueIdentifier0=GUID:441C77F7-3097-4FE9-8BB1-3863D87EB719, LastPXEAdvertisementID=, LastPXEAdvertisementTime=, OfferID=PK020024, OfferIDTime=2/20/2014 11:32:00 AM, PkgID=CAS001SE, PackageVersion=, PackagePath=http://acncmrs.configmgr.com/SMS_DP_SMSPKG$/CAS001PC, BootImageID=CAS001PC, Mandatory=0, Known=1

MP_CliReg.log :-  Following entries are there in the log file.

SCCM ConfigMgr MP Deinstallation failed and Client Registration Issues ConfigMgr
SCCM ConfigMgr MP Deinstallation failed Client Registration Issues ConfigMgr
SMS MP Registration Manager stopped.
SMS MP Registration Manager started.
Could not load logging configuration for component MP_RegistrationManager. Using default values.

MP_RegistrationManager.log:-  Following entries are there in the log file.

MP Reg: Did not find client(GUID:5B942C7F-A352-4940-B668-B45BA1515976) public key. This may be because the client has not registered yet. MP Reg: Processing completed. Completion state = 0

None of the new clients are getting registered. Everything looked fine when we checked MPcontrol.log and MP communication with existing clients. While checking MPSetup.log, we found that MP got reinstalled 2 days before. After that, this issue started popping up. So what next?

SCCM ConfigMgr MP Deinstallation failed Client Registration Issues ConfigMgr

One of the options is to remove the MP role and add it back. We removed MP. However, the remote SCCM MP deinstall was not successful. It got failed. The Sitecomp.log file gave some hints about the issue. SCCM ConfigMgr MP Deinstallation failed, and Client Registration Issues ConfigMgr.

Cannot delete registry key HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SMS\SMS_EXECUTIVE\Threads\SMS_COMPONENT_MONITOR on server acncmrs.configmgr.com . The operating system reported error 997: Overlapped I/O operation is in progress.
Deinstallation failed and will be retried in the next polling cycle.

We’ve checked the registry entry on the remote MP and confirmed that the Role Install account has full access to the registry entry. So what next? Taken the backup of the registry entry “HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SMS\SMS_EXECUTIVE\Threads\SMS_COMPONENT_MONITOR”  and deleted the registry entry given in the above log snippet from remote ConfigMgr SCCM Management Point.

Great, that did the trick. Sitecomp.log at the primary site indicated that SCCM MP was deinstalled or removed successfully. Also, I confirmed this with the MPSETUP.log file at the remote MP site system server. Added back the MP site system role to the remote site system. Performed a test build, and Yes, the client can register with MP. Issue resolved 😉

Quite easy. So what I learned from this issue is provisioning and client registration process post Task Sequence completion !!

Resources

SCCM Related Posts Real World Experiences Of SCCM Admins (anoopcnair.com)

Author

Anoop is Microsoft MVP! He is a Solution Architect in enterprise client management with more than 20 years of experience (calculation done in 2021) in IT. He is a blogger, Speaker, and Local User Group HTMD Community leader. His main focus is on Device Management technologies like SCCM 2012, Current Branch, and Intune. E writes about ConfigMgr, Windows 11, Windows 10, Azure AD, Microsoft Intune, Windows 365, AVD, etc…

2 thoughts on “SCCM ConfigMgr MP Deinstallation failed Client Registration Issues ConfigMgr”

  1. Anoop, so what i understand is that remote SCCM MP deinstall was not successful and that is the cause behind this issue… Right..? and what you did, you took back of the registry and delete the registry from remote SCCM MP… Right..?

    It’s really nice information as far as sequencing of log is concern, Thanks for sharing it. But please let me know the answer about above Question Marks.

    Thanks

    Reply
    • Hi Raman ! – Yes, I read the post again and it was not very clear. Sorry for the confusion. And thank you for asking this question. When I wrote this post I wanted to make a point (give more importance) on client registration flow and troubleshooting rather than MP de install SCCM MP issue. After started writing this I found deinstall would also be useful. 🙂

      Coming back to your question(s),MP was working fine except new client registration. While troubleshooting, we had noticed that SCCM MP got reinstalled (automatically) few days back and that Re installation was successfull as per logs. Then we found that only registration was issue. So we decided to remove SCCM MP and install it again. While trying to remove SCCM remote MP, we had noticed that the primary server couldn’t access or delete the registry keys on remote MP.

      Regards
      Anoop

      Reply

Leave a Comment

This site uses Akismet to reduce spam. Learn how your comment data is processed.