I have a T110 switch outdoors on a gate, and the H100 hub indoors. Between them is 12 meters distance, and one single-brick wall. This seems to be too much for the signal?

The setup was easy to get working when both were in the same room, then I moved the T110 switch out to the gate. At first it was working, when the T110 was "out in the open" i.e unprotected, but it showed low signal in the app (around -85 RSSI). Then I put the T110 into a weatherproof plastic box and now it doesn't communicate at all.

Is there a way to make this work?