Probably better if you ask such questions in Zigbee2MQTT discussions or Tasmota discussions as it sounds like the issues you have is with Tasmota serial server/tunnel and/or socat for Zigbee2MQTT:
https://github.com/Koenkk/zigbee2mqtt/discussions
https://github.com/arendst/Tasmota/discussions
Also, it is strongly discouraged to use a Zigbee Coordinator serial adapter over Wi-Fi. See:
https://www.zigbee2mqtt.io/advanced/remote-adapter/connect_to_a_remote_adapter.html
WARNING
WiFi-based Serial-to-IP bridges are not recommended as the serial protocol does not have enough fault-tolerance to handle packet loss or latency delays that can normally occur over WiFi connections.
Regardless, even if not the root cause of your specific problem you should still also be aware that placing it near your WiFi access point / router is a very bad location and your WiFi access point / router Wi-Fi signals will drown out its Zigbee signals and make its Zigbee reception extremely poor at best. Read and try to follow all the best practices → Zigbee networks: how to guide for avoiding interference and optimize for getting better range + coverage