Im still waiting deliver of a replacement for a failed dongle and was interested if anyone else has had to replace their dongle. If so did it work ok ie confirmed failed dongle. Im pretty sure the external dongles are the same on all equipment and Gen 1 inverters is not unique.
My dongle after 2 yrs stopped broadcasting its own WIFI SO######## and disconnected from home wifi network. So from here there is nothing i can do. GE diagnose faulty dongle likely.