I believe it was the realtek NIC and some settings offloading to the hardware I set during troubleshooting. Installed the Realtek driver in the plugins and changed those settings and so far no instability! Thank you for the tunable suggestion though I will also be checking that out!

The downside is OPNsense is it’s information light, and a bit inscrutable lol I’m having an issue with my WAN dhcp going offline, seems to be happening on a cadence. My modem is fine, connection is valid. Rebooting the OPNsense box fixes it. Losing my mind a bit but I’ll figure it out 🙃

Just moved to an OPNsense network. Setting up unbound was so nice and simple. Much preferred over pihole.