SCCM Client Check Failed on all win10 devices

Question

Issue:
All our clients are showing as failed for client check. I am talking about in SCCM when you go to Monitoring > client status> client check

If you look at client activity, looks great.

We have burned 2 months trying to figure this out between ourselves, local consultants, and Microsoft support case.

Answer 1

Hi @Dustin Mobley ,

Thank you for participating in Microsoft A&Q.

1-Check if the firwall policies allow Windows 10 to communicate with the MEMCM website, over HTTP ports (80 or custom), 10123 and 445.
Docs .: https://learn.microsoft.com/en-us/mem/configmgr/core/plan-design/hierarchy/ports#ports-used-by-configuration-manager-clients-and-site-systems

2 - Check if there are any errors in the logs, opening by CMTRACE.EXE:
C:\Windows\CCM\Logs\ClientLocation.log
C:\Windows\CCM\Logs\LocationServices.log
Docs: https: //learn.microsoft.com/en-us/mem/configmgr/core/plan-design/hierarchy/log-files

<Success and good job>

Answer 2

Without any technical details here, nothing of value can truly be said.

What error code are you getting? What does the client health log show?