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Verify that the required port is available in your environment. You can use a verified MQTT client, such as MQTT-CLI, to test the connection.
If the MQTT-CLI client connects successfully, but your Paho client still encounters issues, please contact our support team. Watch this video tutorial on how to create a support ticket: Create a Support Ticket Tutorial
When creating the support ticket, include the following information:
Provide the link to the guide you followed.
Specify at which step the connection failed and include any error messages received.
Copy the text of the error message rather than a screenshot.
Share the code of your MQTT client, along with instructions on how to build or compile it, and details on how to execute a test run.
This detailed information will help our support team better understand and address your specific issue efficiently.
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