I got a similar issue. Installed 2.2.0 beta and the gateway worked fine for some hours and then it stopped. When I check the gateway function with : sudo ./bin/mysgw -d I only get these messages : pi@raspberrypi:~/MySensors $ sudo ./bin/mysgw -d mysgw: Starting gateway... mysgw: Protocol version - 2.2.0-rc.1 mysgw: MCO:BGN:INIT GW,CP=RNNGL-Q-,VER=2.2.0-rc.1 mysgw: TSF:LRT:OK mysgw: TSM:INIT mysgw: TSF:WUR:MS=0