I'm having an issue that is confusing me greatly. I just set up unRAID this weekend and PiHole was the first thing I installed on it. I set the Network Type to "Custom (br0)", set the Fixed IP address to the LAN IP I wanted it on, and also set the Server IP to the same.
If I connect to the IP from a remote system on my home LAN, it connects up just fine. However, if I try to connect to it from the host system (the unRAID server), I can't connect to it. If I open a terminal in unRAID and ping the PiHole IP, it times out (I can ping the gateway, tho). For the life of me I can't figure out what's going on, unless it's some wonky way unRAID handles internal routing between containers. It's not a show-stopper but it would be good to know what's going on and how to fix it in case I run into similar issues later on.
Also, at some point in my fiddling around with it, I can no longer resolve pi.hole. The first time I set it up it worked, but not anymore.