Hey Folks, i am running into a strange issue while testing around with a ESP8266 as a mqtt client.
With my old setup ( Homeassistant running as a container using the embedded HBMQTT broker and an ESP8266 with PubSubClient lib) everything worked fine.
This time I started over with a Raspberry Pi zero, the latest Hassbian Image and again the embedded mqtt broker. But as soon as the esp client (the Pubsubclient) gets connected, there is no more remote communication possible through SSH. The local terminal with display and keyboard connected to the pi keeps working.
But the remote SSH connection freezes and drops. And now the curious thing: When I try to reconnect SSH, the pi is asking me for a username and its password, but after entering both, nothing happens. No error message, nothing. And it doesnt matter if i use the pi or the root account.
If i then disconnect the client, the hanging ssh login will continue after a few seconds and everything behaves as expected. I additionaly tried the external Mosquitto broker with the same result.
The funny thing is, that everything HA related keeps working in the background. The web frontend is reacting, even the sensors are getting updated with the fresh payloads from the ESP client.
Only the ssh connection is getting blocked.
I am hoping that this is a well known error. If it is not, i will go on and post my configuration here of course.
Greetings