@livius Thanks a lot. Now both of my LoPy works in AP mode. com port issue is adressed and fix will be released in next firmware @daniel can say when. I hope it is very soon.

@robert-hh Thanks for the info ! www.pycom.io works and we can now join the network.

@mkbenon You're welcome, I just gave you some hints, glad that you manage yourself (best learning method). :o) Also please note that MQTT example script changes WLAN antenna mode for external (WLAN.EXT_ANT). If your LoPy setup has the external antenna - that's OK, but if not you should use default internal antenna (WLAN.INT_ANT).

@jmarcelino ok, thanks. The Lopy was in AP mode. I will give it a try in STA mode. Cheers Mark