Hello,
I just tried to configure a AdGaurd Home on my OPNSense but for any reason I just get an error message "<nil> is not an IP address" while I am starting it. Seems to me that it tries to get an IP address and doesn't get anything back.
When I start it I see that binding port 53 is successfull (doesn't matter if unbound DNS is active on port 53 or not!), then I see that error message and after it I see the IP addresses and ports (3000 and 3001 for the BETA webinterfaces).
I had the same problem on a virtualized OPNSense, but there it worked fine for a few days and suddenly I wasn't able to start it anymore.
Anybody got an advice? Would be really nice to get it working on the same device :)