Alpha On unable to cummunicate to WIFI Microgateway

Hi I´m tryng to connect to AlphaOn windows rel to WIFI Micro Gateway MQTT ( unit via USB serial port . Not sucess in any pc or port; “Unable to communicate with Modem”
From web documentation looks supported. Any clue?
i can send you serial port logs for debugging

MQTT gateway does not work with the Alpha station.

Thank you for your answer.
I would suggest you update documentation or list supported devices . Both would help us
Alpha Station - Sensor and Control Software for Windows using Visual Studio -
" A. Select COM Port if you are working with a USB Modem or Gateway. This options is also compatible with any other COM device we may release in the future, including RS-485, Bluetooth, RS-232, etc."