When you are not able to connect after changing network adapter settings, there is last recovery option:
disconnect power supply of converter
remove three screws on both sides of case
connect power supply and ethernet cable, configure network adpater of your PC to IP address 192.168.0.xxx
two short presses on button showed on picture
converter will temporarily switch to base IP address 192.168.0.202
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fix network settings
test new settings
disconnect power supply
mount case