Lost network socket connection without recovery by watchdog.

[weekends]

What happened?

I'm have 2 installation in different places HA+z2m. Use 2 different adapters, one is ZigStarGW with FW: 20240914 second SLZB-06 with FW: v2.8.2.dev3. Bought of them use zigbee fw: 20240710. After update to 2.1.x version i'm has trouble once in 2-4 days on bought configurations:

2025-03-06 13:12:14] error: zh:zstack:znp: Socket error Error: read ECONNRESET
[2025-03-06 13:12:14] error: z2m: Adapter disconnected, stopping
[2025-03-06 13:12:14] error: z2m: MQTT error: write ECONNRESET

WatchDog can't help, more then 1:30 hour nothing change. Only manual z2m restart in HA restore work.

What did you expect to happen?

Updating to 2.1.x z2m version. Bought configuration work fine with out any issues near 1 year before update.

How to reproduce it (minimal and precise)

On my side - simple - restart z2m and wait 2-4 days, till z2m crashed.

Zigbee2MQTT version

2.1.3

Adapter firmware version

20240710

Adapter

ZigStarGW, SLZB-06

Setup

Add-on on HomeAssistant

Debug log

I'm add debug log later. Now turn it on and wait for crash.

[Nerivec]

Since both MQTT and the adapter lose connection, looks like you are having issues with your network.
You should start looking there.
Any configuration changes in your network, updates, etc., anything that may trigger at a specific interval (2-4 days) that could be crowding the network...
Try restarting your modem/router, check firewalls, antivirus, etc.

[weekends]

There are no any changes in network configuration. On one of the configurations, network completely separated only for automation. All IP's in network static, ping's and web access to adapter work with out any issues. Socket also accessed when z2m wrote, that can't. Restart of the z2m fix problem for the time...