System keeps crashing - ddclient?

[tuxie223]

My pretty new, fairly barebones setup keeps crashing requiring a power pull or hard reboot.

I can't find anything in the logs that stands out, besides the last thing in the syslog before the crash is a spam of ddclient trying up update my dynamic dns but saying cannot find a ipv4 or ipv6 address.

Suspecting this as a maybe, I disabled it for now..

Any thoughts where else to look?

Memory/disk use is fine, no spike in processes before, temp is in range, etc.     I ran a extended memtest86 run on my memory and it seems fine too.

System>firmware>health check shows no warning either.