Defender Endpoint device not sending device update

[Daniel Niccoli]

I onboarded a couple of devices to Microsoft Defender and some do not send device updates. This one for example has been online in the past three days, the Device Last Seen also confirms this ("Jan 10, 2022 6:44:20 AM"), but the last update is still 7 days ago. How do I troubleshoot that?

[#2]

There might be some hints here.
https://docs.microsoft.com/en-us/microsoft-365/security/defender-endpoint/event-error-codes?view=o36...

You could also try running the client analyzer.
https://docs.microsoft.com/en-us/microsoft-365/security/defender-endpoint/download-client-analyzer?v...