Hello,
just bought 2 Shelly Pro2PM units.
the first unit, I upgraded to the latest firmware 0.11.4 - the other unit is on out of the box 0.10.2-beta1
I don't receive any message in my mqtt gateway from those Pro2PM units. I tried all possible options
not through wifi, not through wired connection
not with cloud setting on, not with cloud setting off (necessary on shelly 1PM)
if I connect a Shelly1PM and configure MQTT setting, I imiddetialty find new entries in the gateway. so gateway is in good shape 
what can be wrong ?
thanks for your feedbacks
br
Jo
