Sonoff ZBBridge not Conneting anymore

It was working great over the last year but since yesterday i see following error message:

Retrying setup: Could not open port socket://192…:8888: [Errno 111] Connection refused

HA Version 2021.9.3
I changed nothing. It just stopped working.
I am using HA inside a VM machine.

Console output from Zigbee Device:

10:03:50.010 MQT: Attempting connection…
10:03:50.069 MQT: Connected
10:03:50.072 MQT: tele/tasmota_E2FE31/LWT = Online (retained)
10:03:50.074 MQT: cmnd/tasmota_E2FE31/POWER =
10:03:50.084 MQT: tele/tasmota_E2FE31/INFO1 = {“Info1”:{“Module”:“ZHA ZBBridge”,“Version”:“9.5.0(tasmota)”,“FallbackTopic”:“cmnd/DVES_E2FE31_fb/”,“GroupTopic”:“cmnd/tasmotas/”}}
10:03:50.088 MQT: tele/tasmota_E2FE31/INFO2 = {“Info2”:{“WebServerMode”:“Admin”,“Hostname”:“Zigbee-Bridge”,“IPAddress”:“”}}
10:03:50.092 MQT: tele/tasmota_E2FE31/INFO3 = {“Info3”:{“RestartReason”:“Software/System restart”}}
10:03:50.106 RUL: SYSTEM#BOOT performs “TCPStart 8888”
10:03:50.113 MQT: stat/tasmota_E2FE31/RESULT = {“Command”:“Unknown”}
10:03:53.450 QPC: Reset
10:03:54.385 MQT: tele/tasmota_E2FE31/STATE = {“Time”:“2021-09-06T10:03:54”,“Uptime”:“0T00:00:09”,“UptimeSec”:9,“Heap”:28,“SleepMode”:“Dynamic”,“Sleep”:50,“LoadAvg”:19,“MqttCount”:1,“Wifi”:{“AP”:1,“SSId”:“FRITZ!Box 6490 Cable”,“BSSId”:“44:4E:6D:F2:04:50”,“Channel”:1,“Mode”:“11n”,“RSSI”:100,“Signal”:-41,“LinkCount”:1,“Downtime”:“0T00:00:03”}}

Seems your bridge has lost its configuration.

I have just experienced this too. I rebooted my bridge a few times, sometimes with a hard-reset (laziness). Had to re-setup the bridge (Sonoff Zigbee Bridge (ZBBridge) Zigbee compatibility). Unfortunately this also means I have to re-pair all of my devices - does anybody know how to avoid needing to do that?

Regularly save backups of Zigbee network to file. Backup manually or setup scheduling for zha-toolkit

Unfortunately there is no integrated backup feature in ZHA yet for this is for Zigbee2MQTT, see request:

PS: By the way, it’s not recommended to use remote Zigbee adapter over WiFi with ZHA/Zigbee2MQTT: