If you’ve been following FOG for a little bit of time, you all may remember a week or so ago where we had the “random” mac deletions occurring?
Well, last night, or two nights ago (i don’t remember which exactly) i found the culprit and corrected it.
What this means:
FOG is actually working as intended. You’re missing the MAC that once existed because the hostMAC field for that host either one or both are set at id of 0 (which is invalid).
I don’t have a nice means to fix this, so if you’ve got phpmyadmin or are knowledgeable about database entries you can correct it on the fly.
The simplest method I can think if, for now, would be to delete the host (or hosts as the case may be) that’s causing a problem and attempt re-registering them.