@Patrick Mor
Thanks for your posting on Q&A.
Here are my ideas of the case.
1. I found a related BLOG and I want to share in this forum.
https://jayrbarrios.com/2019/10/08/notes-from-the-field-some-windows-10-are-not-reporting-to-sccm-server/
In this blog, there are multiple entries of the client in the database. Try to clean it up. Then the device will try to report and create a new entry. Please try to follow the link and check whether it is helpful for you.
2. In my opinoin, because the issue only occurred on one of the affected client, a useful method is to reinstall the OS in the device.
Hope the above will be helpful. Please let us know if there are any updates.
Best regards,
Rita
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