I’m using 64bit HassOS 5.4 on Rpi and Zigbee2mqtt Edge and Mosquitto broker.
Zigbee2MQTT:error 2020-10-28 22:52:01: Failed to ping '0x000b3cfffef44019'
It is working a short moment after half a minute failing to ping devices
No additional info at debug mode.
Zigbee2MQTT:error 2020-10-28 23:12:50: Publish 'set' 'state' to '0x000d6ffffef3478f' failed: 'Error: Command 0x000d6ffffef3478f/1 genOnOff.off({}, {"timeout":10000,"disableResponse":false,"disableRecovery":false,"disableDefaultResponse":false,"direction":0,"srcEndpoint":null,"reservedBits":0,"manufacturerCode":null,"transactionSequenceNumber":null}) failed (Data request failed with error: 'MAC channel access failure' (225))'
Remove availability_timeout - see here…
I haven’t had a crash since, but obviously I don’t get when my devices go unavailable, so I’ll be heading back into that thread over the next couple of days to see what is a good number to go for that gives me availability without stressing the network.
After removing availability_timeout from the config devices stays online, but I cannot control them. See my second post for the error. All were working fine before upgrade to 0.117.
Have you unplugged and replugged your dongle?
Yeah, I don’t know why that clears it, but it does.
Hopefully you won’t experience any further crashes, but follow that github thread to see what the author of zigbee2mqtt says when I get back to him with an update. Hopefully I’ll do so this weekend, or early next week at the latest 
