HA Noah-mqtt Integration doesn't work with the broker

Hello Community!

I’m having trouble with the noah-mqtt integration not sending any data to the broker (MQTT add-in).
I’m relatively new to HomeAssistant.
The HA runs on a Raspberry Pi Supervised.
HA Core 2025.6.1
MQTT Broker 6.5.1

The broker already has a Tasmota (gas meter) that works perfectly.
The noah-mqtt add-in isn’t being recognized for some reason, even though I’ve already provided the host, mqtt user, password, and port to the configuration.
I don’t see any contact in the mqtt explorer either.
What’s wrong? I need help!

SOLVED
It seems as if a different Agent Code solved it. In the same step I generated a API Token, but weren’t able to integrate it somewhere. So, I got back to the Agent code. As soon as I changed it to “EAKRQD” I’ve got another Dashboard online and the data could picked up with the mqtt integration.