Slow and not responding Network

[DustinThal]

What happened?

1. Initial Setup:

   • Zigbee network with 113 devices: 61 end devices, 52 routers.
   • Network was functioning fine before adding new devices.

2. Problem Start:

   • After adding 4 new routers, the network became slow.
   • Symptoms:
     • Many devices do not respond or respond after a long delay (minutes or not at all).
     • Frequent timeouts when attempting to control devices.
     • Frequent Failed to read state
     • Errors: NWK_TABLE_FULL. <-solved

3. Actions Taken:

   • Removed the newly added routers (issue persisted).
   • Updated firmware of Zigbee coordinator stick from 20230507 to 20240710 (NWK_TABLE_FULL resolved, but issue persisted).
   • Downgraded Zigbee2MQTT HA plugin to 1.40.2-1 in steps (no improvement).
   • Installed the latest Zigbee2MQTT Edge version (no improvement).

4. Current State:

   • Network remains slow.
   • Many devices fail to respond to commands in time, with timeouts occurring frequently.

5. Additional Information

   • Zigbee is on Channel 11
   • Changed my Wifi from Channel 1 to 6 (also on 1 no problems for over 3 years with several adapters)

What did you expect to happen?

normal behavior of the system

How to reproduce it (minimal and precise)

Hardware:
DELL Optiplex 3050 connected(wired) to FritzBox7590 (OS 8.00)
UZG-01 FW-Rev 20240707 HW-rev ESP32-D0WD-V3 with CC2652P7 FW-rev 20240710 connected(wired) to FritzBox
Home Assistant Core 2024.12.3 Super 2024.11.4 OS 14.0 Front 20241127.8

Zigbee2MQTT version

1.42.0-dev commit: e234f42

Adapter firmware version

20240710

Adapter

UZG-01

Setup

Add-on on Home Assistant OS on Dell Optiplex 3050

Debug log

log.log