Hi all, I noticed an issue concerning the client health in our SCCM 2012 R2 environment.

 

There are about 600 SCCM clients in our hierarchy, today I realized that about 40 of them don't have the "installed flag" any more (installed = no). The client was installed before because I could still access the hardware inventory etc. with the ressource explorer. The heartbeat interval is set to 7 days and the clear install flag interval is set to the maximum of 40 days.

 

Earlier this day I had the chance to take a look at two of those clients and both had the same symptoms:

 

- The SMS Agent Host service was just gone (as in it wasn't visible in services.msc any longer).

- The site code, all the client actions etc. were gone from the Configuration Manager console in the control panel.

- The eventviewer was spammed with WMI (event id: 63) warnings which appeared to be related to the SCCM client.

- ccmsetup.exe /uninstall and a manual install / client push install didn't work to remove or to reinstall the client. The uninstall just started a rollback after a while and the installation gave me a return value '3' in the ccmsetup.log

 

What I finally did to resolve the issue was to delete the folder C:\Windows\CCM and to empty the folder C:\Windows\ccmsetup because I couldn't delete the whole folder and then start a client push installation again.

 

My questions are:

 

- How did this happen?

- What can I do to fix this error on all clients which have this problem without the need to connect to every system manually and repeat the above steps?

- What can I do to prevent this from happening in the future?

 

Thanks in advance guys!

 

Best regards

• Edited by 0x00000c 17 hours 6 minutes ago Typo

Probably the easiest thing you can do is implement Jason Sandys client heath startup script.

http://blog.configmgrftw.com/configmgr-client-startup-script/

Wow, that's a real head-scratcher.  I manage over 13,000 machines and watch my SCCM clients like a hawk, and I've never seen anything like this where the SMS Agent Host service just disappears.  Is there someone, like a technician, running around doing something?  Check out the logs in \windows\ccmsetup\logs for hints on when this might have happened.  Don't just shrug this off... dig deeper to find the root cause.  Do you have your SCCM hardware inventory scan set to run every day?  If so, dump a list of last scan dates and see if you can find any common patterns with the affected systems.  If it was one or two machines, I wouldn't care so much, but 40 machines?  You have a genuine mystery on your hands.  Good luck.

Nick.

• Edited by Nick P. - SCCM Guy 11 hours 58 minutes ago