Help needed with zigbee2mqtt & slzb-06m (devices going offline)

Configuration Zigbee
1

I installed everything (this is not my first install). Slzb-06m is running fine but devices keep dropping though i added repeaters and the signal number are always above 100.

I am getting this error:

IMG_7639
IMG_7639938×497 149 KB

Any support, ideas, new things to try would be really appreciated.

2

Explain more about your network. How many devices, how many are routers or battery powered?

3

I intended to install many sensors but decided to make sure that it is a stable network first:

  • currently there are 18 devices
  • 3 repeaters (not all devices are connected to repeaters)
  • all 18 devices including repeaters are wired (no batteries)

Thanks for replying