MQTT- Server configuration

The gateway is running in a Docker container, and the default server connection status of not connected indicates whether this is due to a TCP port issue or not. If not, please offer a solution.

Please see the following command for running the container.

"docker run -d -p 9088:8088 --name ignition-icpro inductiveautomation/ignition:latest -n docker-icpro -a localhost -h 9088 -s 9043"

Do you have MQTT Distributor installed into this gateway? Your server configuration there in MQTT Engine is pointing at localhost, which is from the container's perspective, not your host computer.