Fibaro Single Switch 213 Not Found by Smart Things Hub

Hello all!

Struggling somewhat with trying to connect a Fibaro single switch to ST.

Device is connected, and shows red LED when power comes on. Click on the manual button on it has a satisfying click, but no matter what I do, the ST hub will not find the device when I add it using the iOS app.

Have got the switch now wired less than 2m from the ST hub, and still no joy.

Any ideas?