Please check memory of computer with memtest86+ 8.0

https://www.memtest.org/

I have the same HP Z2 G1i – it works for me with
sanboot.PNG
“SANBOOT”
The BIOS also seems very finicky to me—I even disabled all NVMe devices and Windows and enabled only network boot—but Windows resets the setting. Setting a BIOS password didn’t change anything.

@bond007fink A new version of ntfs-3g, which is the parent package for ntfsresize, has finally been released last week. That’s after 4 years of no updates. If all goes well, I will be doing an experimental release this weekend with the newer package.

As @Tom-Elliott stated, this is not an issue with FOG itself, instead FOG relies on tools like ntfs-3g and partclone to handle all the NTFS filesystem changes. Hopefully this updated version fixes your issue.
I will update the thread once the experimental release is available.

@Tom-Elliott

This is fixed, too, and can be marked as solved. The reason was stale WOL power action. I deleted those manually from the DB, and the CPU went back to normal.

I’m not sure about the SSH and replication issues, but I deleted my physical storage node, and I’m not seeing those anymore.

@mashina
I’m still having huge problems. Updated Fog. Rebuilt the Windows 11 image. … Windows 11 changes the boot order.
The image works for a few days—then it stops working.
Multicast only works sometimes—just now the image worked with one computer, but not with three in multicast—it just stops at 94% for no reason. What surprises me the most is that with this computer, only BOOT EXIT TYPE: SANBOOT works. I don’t understand much about this, but it seems wrong to me.

@pillbox1234567 Thanks for the suggestion. I turned Viridian off on the cloned VM, and it did not make a difference.

Interesting note that you’ve seen it cause boot issues on certain Linux VMs. I have not experienced that behavior yet but will keep an eye out for it.

@Preston Wow that was a super answer, thanks Preston! I’ll give this a go in the week. 🙂

@Exsival When you say “Causing the fog server to crash” what exactly do you mean?

If it’s just a “saying” I can understand that but from a technical standpoint what this means is completely different and would need logs. If all you mean is the machine in quesiton is hanging, that’s a different issue altogether. I highly doubt the whole FOG Server is crashing.

@Infojoe I forgot an important information : version 1.5.10.1826

@lucasgfaj have you turned off secure boot?

@Tom-Elliott
I did not update yet to 1824, but i did SELECT * FROM HISTORY;

MariaDB [fog]> SELECT * FROM history; +-----+----------------------------------------------------------------------------------------+-------+---------------------+-------------+ | hID | hText | hUser | hTime | hIP | +-----+----------------------------------------------------------------------------------------+-------+---------------------+-------------+ | 1 | [2026-04-01 08:33:55] MulticastSession ID: 1 NAME: test has been successfully updated. | fog | 2026-04-01 08:33:55 | 10.10.3.116 | +-----+----------------------------------------------------------------------------------------+-------+---------------------+-------------+ 1 row in set (0.000 sec)

the new session i create are not shown, and dont work until i run the maintenance queries

then it shows in history table:

MariaDB [fog]> SELECT * FROM history; +-----+----------------------------------------------------------------------------------------+-------+---------------------+-------------+ | hID | hText | hUser | hTime | hIP | +-----+----------------------------------------------------------------------------------------+-------+---------------------+-------------+ | 1 | [2026-04-01 08:33:55] MulticastSession ID: 1 NAME: test has been successfully updated. | fog | 2026-04-01 08:33:55 | 10.10.3.116 | | 2 | [2026-04-01 09:10:37] MulticastSession ID: 1 NAME: test has been successfully updated. | fog | 2026-04-01 09:10:37 | 10.10.3.116 | +-----+----------------------------------------------------------------------------------------+-------+---------------------+-------------+ 2 rows in set (0.000 sec)

@devle I’ve made a couple of edits, though I still cannot replicate the problem you’re seeing.

You shouldn’t see the errors any more (just saying), though I don’t know if these things will fix whatever problem you’re seeing.

@Tom-Elliott All good the last update fixed the issue!