What is my MQTT mistake?

Hello,
I’m not able to solve this configuration issue by myself.

I have flash my Sonoff S20 with Tasmota.
I have configure it like picture below.

In HA I have install
Mosquitto broker
with follow Log

This is the configuration.yaml

102

I have tested may configurations in configuration.yaml but I’m too stupid to connect the device.
Please help me
Maybe someone can tell me what is wrong and what I have to change.
Thanks in advance

The log reports this several times:

Socket error on client pumpe01_0B029B, disconnecting.

Are you restarting the device (which would explain the log message)? If you have not recently restarted the device several times, then those messages mean the device keeps connecting/disconnecting which implies it may have a problem maintaining a stable Wi-FI connection.

Payloads need to be all caps.
ON
OFF

I had a problem like that because I didn’t configure the MQTT client the right way.
(internal IP and name and password)

If you have already fixed that problem then you should not show those log messages to the people trying to help you because it is misleading information.

Please post an example of the payload that should be received via the state_topic.

I have test many configurations last time and find a functional configuration.
I change the full topic to default setting and create the configuration.yaml new.
Now it works.
Snapshot Tasmota:

configuration.yaml:
201

I’m sorry but I don’t know what the problem was.
I have tested it by try and error.
Now it works, many thanks for your help.