Just a reminder but as the mini goes inside the hive, if you place it in the top section of the hive, a metal cap could reduce the signal strength. If you have a poor WiFi connection, try temporarily removing the cap or replacing it with a temporary non-metal one.
I originally put mine within a foundationless frame in the 3rd of 5 boxes and my buzzbox wouldn’t connect. I moved it on top of the frames in that same box and then it was able to connect. Not sure if that would help you too?