MQTT connection lost

[Ziyor Rest]

hi is anyone here familiaar with mqtt broker and mqtt.fx client?? i have downloaded mqtt broker from Download | Eclipse Mosquitto, i have downloaded windows version 64-bit. and the client that i am using is mqtt.fx i have configured broker address: server ip[203.x.x.x] broker port:1883, i have checked that the mosquitto broker is running on port 1883. as for the downloaded broker i just used command prompt [net start mosquitto to activate it and set it to port 1883] but the connection is lost when trying to use mqtt.fx to connect to broker, and i have also opened up port 1883

[Ziyor Rest]

hi, i would like to inform y'all i watched a yt video and managed to set up my mqtt.fx with my mosquitto broker. However the mqtt logs say that the broker connection is lost even though it managed to connect to the server ip