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1. Check your database settings: Ensure that your database settings in your Django settings (settings.py) match the settings that you set up in MySQL, including the database name, username, password, and host.

2. Check MySQL server status: Ensure that your MySQL server is running by logging in to the server and checking the status of the MySQL service.

3. Check privileges: Ensure that the database user you are using to connect to MySQL has the appropriate privileges to access the database specified in your Django settings. You can check this by logging in to MySQL using the same credentials and running the following command:

SHOW GRANTS FOR username@localhost;

1. Check version compatibility: Ensure that the version of your MySQL server is compatible with the version of Django you are using.

2. Check firewall settings: Ensure that the firewall settings on your server are not blocking the MySQL port.

3. Check the error message: Carefully read the error message that is displayed when trying to connect to MySQL, as it may provide insight into the issue at hand.

4. Check the MySQL log: You can also check the MySQL error log for more information on the error. The location of the log file may vary depending on your operating system and MySQL installation.

5. Contact support: If you are still unable to resolve the issue, consider reaching out to the Django or MySQL community or seeking professional support.