I'm working on IoT project and trying to use mqtt protocol. So I need a Mqtt broker as a server installed on my PC. My PC has static ip and special modem. So my local and general ip is lookin same.
I installed mosquitto firstly. Tested it with Mqttlens chrome app, it looks everything is fine when I test it on the same computer (which is the computer on which broker is installed). But when I try to publish a message from another device with different ip, I can't connect to broker.
I installed Hivemq and tried it for this broker too. And it is the same so I can connect broker when I open mqttlens in same computer, but I can't connect to my broker from other device.
And here is what I already tried and tested;
I downloaded My MQTT application to my android mobile phone. And connected to hivemq broker with broker.hivemq.com url. In the same time in different two pc's I connected to the broker with mqttlens app. I set up the tags. And everything is working, I can send messages and subscribing topics. Everything is working well. I tried it when that third device in the same lan and when using different networks. Both time, everything is fine.
But when I try the same thing by writing the my ip address to the mqtt lens and MyMQTT application. Other devices even can't connect to broker. There are no error messages or anything else. Just disconnected and can't connect.
I tried to change bind address with my ip address. But when I write 0.0.0.0 or my ip address, result is same I couldn't connect.
Any suggestions?