Windows
Server check-in alert cleared after DIMM replacement and reboot
The host server was reporting bad DIMM status and check-in problems. The memory was replaced, the server was rebooted, and the host and virtual servers were reported healthy again.
Killed once by someone from XL.net, on 2026-10-28.
Affects
Versions
- Windows
Apps
- Compass application
Hardware
- Server DIMMs
- Host server
What you see
- Host server has not checked in
- DIMM status shows bad or missing
- Remote access to the server is not working until after reboot or service reconfiguration
Why it happens
Likely Likely failed DIMMs caused the host server alert and instability.
When it shows up
A Windows host server is alerting as not checked in and the DIMM health status is not good.
You are in this case if:
- DIMM status shows bad or degraded health
- Host server and virtual machines stop reporting as healthy
1 fix below
The steps that killed it
The steps are behind a quick check
There are two ways in and both take a few seconds. Signing in opens the steps on every bug page; so does reading the picture.
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Drawing a picture for you.
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Someone from XL.net killed this on a Windows computer on 2026-10-28. It is written up from that one repair, so it cites no outside page.