Problem with zigbee2mqtt and mqtt

Configuration Zigbee
1

Hi everyone.
I have three zigbee networks in my home, each one with one slzb03 as coordinator and a zigbee2mqtt running in docker. All zigbee2mqtt have the same config for the last year and works very well, until yesterday, when I have added three devices in a zigbee network and it not appears in home assistant: it’s not listed in the list of the devices in the mqtt integration. I tried to add the same devices in another network, and it appears in home assistant. Ten days ago I added a device in the problematic zigbee network successfully. I have no idea how to solve this problem. All config is ok and I have already restarted everything. Bellow are my zigbee2mqtt config:

devices: devices.yaml
groups: groups.yaml
homeassistant:
  enabled: true
  legacy_action_sensor: true
  discovery_topic: homeassistant2 #(homeassistant1 and homeassistant3 for the others networks)
  status_topic: homeassistant2/status #(homeassistant1 and homeassistant3 for the others networks)
frontend:
  enabled: true
  port: 8082 #(8081 and 8083 for the others networks)
  auth_token: (secret)
mqtt:
  base_topic: zigbee2mqtt2  #(zigbee2mqtt1 and zigbee2mqtt3 for the others networks)
  server: mqtt://192.168.120.22:1883
  user: root
  password: (secret)
  keepalive: 60
  reject_unauthorized: true
  version: 4
serial:
  port: tcp://192.168.130.25:6638 #(varies for the others networks)
  baudrate: 115200
  adapter: zstack
  disable_led: false
device_options:
  homeassistant:
    last_seen:
      enabled_by_default: true
availability:
  enabled: true
  active:
    timeout: 10
  passive:
    timeout: 480
advanced:
  transmit_power: 20
  channel: 25 #(varies on another zigbee network)
  pan_id: 30436 #(varies on another zigbee network)
  ext_pan_id: #(... - varies on another zigbee network)
  network_key: #(... - varies on another zigbee network)
  last_seen: ISO_8601
version: 5

Would appreciate any thoughts on what might be wrong.

2

Any particular reason you are running three different networks? You might be better off running a single, large network.

3

I run a zigbee network in each floor. The greatest benefit is limiting any potential problem with the devices to one-third of the house.

4

How many devices do you have on the different networks? how many of those devices are routers, how many are battery powered?

5

I dont think this is a benefit. It is more biggest problem you could create.
Zigbee network is a mesh network. You do not separate mesh network into separate networks.
By design devices in mesh network will auto connect to the fastest router and maintain their connectivity.
I have around 110 zigbee devices across 3 floors and one network.
If you want to do something for it you could remove mqtt to listen on that ip address as there is no reason to send unencrypted mqtt messages acoss tcp/ip stack just for z2m.