Hi Ernst, does this also mean that your zigbee network is unstable, so devices don’t respond?
Are you running Z2M for a longer time, was it working well and is this issue something that pop ups recently?
EDIT: this is a useful topic about zigbee2mqtt → Zigbee networks: how to guide for avoiding interference + optimize using Zigbee Router devices (repeaters/extenders) to get a stable mesh network with best possible range and coverage