Hosting DHCP on TrueNAS with AdGuard Home unstable

I agree with you that better details would be helpful, but I noticed the network outage when I was ready to go to bed (and resolved it with a sleepy head) and forgot to take screenshots. I’m learning on the fly, currently reading about systemlogs etc.

In the meantime I have found a few similar topics:

And a potential cause:
https://ixsystems.atlassian.net/browse/NAS-133437