Zigbee2mqtt Hass.io can't join devices, Tradfri lights and Xiaomia buttons and sensors

I’ve flashed the CC2531 Sniffer as per the instructions and plugged it into HA (NUC Debian/Docker/Hass.io) using the Hass.io Add-on with the following configuration

{
“data_path”: “/share/zigbee2mqtt”,
“homeassistant”: true,
“permit_join”: false,
“mqtt_base_topic”: “zigbee2mqtt”,
“mqtt_server”: “mqtt://homeassistant”,
“serial_port”: “/dev/ttyACM0”,
“devices”: ,
“network_key”: ,
“disable_led”: true,
“mqtt_user”: “username”,
“mqtt_pass”: “password”
}<

The sniffer appears to be connected to Hass.io as the disable LED command works and the log shows it responding to the allow join command from the HA front end see log below from start up and the start-up MQTT messages are published.

[Info] Configuration file found: /share/zigbee2mqtt/configuration.yaml
[Info] Configuration written to /share/zigbee2mqtt/configuration.yaml
2019-04-20T19:55:36: PM2 log: Launching in no daemon mode
2019-04-20T19:55:36: PM2 log: App [npm:0] starting in -fork mode-
2019-04-20T19:55:36: PM2 log: App [npm:0] online
[email protected] start /zigbee2mqtt-1.3.1
node index.js
zigbee2mqtt:info 4/20/2019, 7:55:37 PM Logging to directory: ‘/share/zigbee2mqtt/log/2019-04-20.19-55-37’
zigbee2mqtt:info 4/20/2019, 7:55:37 PM Starting zigbee2mqtt version 1.3.1 (commit #unknown)
zigbee2mqtt:info 4/20/2019, 7:55:37 PM Starting zigbee-shepherd
zigbee2mqtt:info 4/20/2019, 7:55:38 PM zigbee-shepherd started
zigbee2mqtt:info 4/20/2019, 7:55:38 PM Coordinator firmware version: ‘20190223’
zigbee2mqtt:info 4/20/2019, 7:55:38 PM Currently 0 devices are joined:
zigbee2mqtt:info 4/20/2019, 7:55:38 PM Zigbee: disabling joining new devices.
zigbee2mqtt:info 4/20/2019, 7:55:38 PM Connecting to MQTT server at mqtt://homeassistant
zigbee2mqtt:info 4/20/2019, 7:55:38 PM zigbee-shepherd ready
zigbee2mqtt:info 4/20/2019, 7:55:38 PM Connected to MQTT server
zigbee2mqtt:info 4/20/2019, 7:55:38 PM MQTT publish: topic ‘zigbee2mqtt/bridge/state’, payload ‘online’
zigbee2mqtt:info 4/20/2019, 7:55:38 PM MQTT publish: topic ‘zigbee2mqtt/bridge/config’, payload ‘{“version”:“1.3.1”,“commit”:“unknown”,“coordinator_firmware”:20190223,“log_level”:“info”,“permit_join”:false}’
zigbee2mqtt:info 4/20/2019, 8:09:31 PM Zigbee: disabling joining new devices.
zigbee2mqtt:info 4/20/2019, 8:09:32 PM MQTT publish: topic ‘zigbee2mqtt/bridge/config’, payload ‘{“version”:“1.3.1”,“commit”:“unknown”,“coordinator_firmware”:20190223,“log_level”:“info”,“permit_join”:false}’
zigbee2mqtt:info 4/20/2019, 8:09:32 PM Zigbee: allowing new devices to join.
zigbee2mqtt:info 4/20/2019, 8:09:32 PM MQTT publish: topic ‘zigbee2mqtt/bridge/config’, payload ‘{“version”:“1.3.1”,“commit”:“unknown”,“coordinator_firmware”:20190223,“log_level”:“info”,“permit_join”:true}’<

I’ve attempted to connect a factory reset Tradfri light and various Xiaomi sensors without success any hints as I would like to get rid of the Hue and Xiaomia hubs to unify all my Zigbee devices to extend the range of the sensors.

Thanks

I have the same problem with the last firmware (20190223) USB Zigbee2mqqt key.
I flashed with the firmware of december 2018 and all works fine.
Trafri can be paired again.

I sometimes have to reset a couple of times to get it working. Also once you have done the reset give it a minute to join, they dont seem to be instant takes up to a minute (I am on the same firmware as you).