SolarMax binding - communication error

Hello, I just tried to connect my inverter 10MT2, but I receive a communication error and the thing goes offline.
In the wireshark-compatible router protocol I found a PSH message sent to the inverter, but the inverter does not reply with PSH. Perhaps, the message contains data, which is not valid for my machine. Some of the commands are not listed in the MaxComm manual.
Also, it might be possible, that the device id is not matching. I’m missing to set and check this in the thing configuration.
Can s.o. help me to analyze, what is going wrong?