"KCS" v2.2.2 firmware BIN file download

[admin]

i am testing with KC868-AG, but actually you are using AG Pro. when i have free time, test with AG Pro again.

[slim.abdelhedi@gmail.com]

I recently purchased a KC868-A8 Board with the intention of developing a smart home solution for the education sector. However, during my testing, I discovered that this board does not function properly with MQTT servers such as test.mosquitto.org.
I am reaching out to seek your assistance in resolving this issue. My objective is to be able to command eight output relays and supervise two inputs as well as two digital input sensors via an MQTT server, specifically test.mosquitto.org, from a web interface.
Could you please help me identify the source of the malfunction and rectify it? Your expertise would be greatly appreciated in helping me achieve my development goals.
Thank you in advance for your invaluable assistance, and I am available for any further information you may require.
Best regards,

[admin]

you need download KCS fimrware first, then enable MQTT protocol. here is online guide:
https://www.kincony.com/esp32-kcsv2-firmware.html
you can post your mqtt setting config webpage screen photo.