Please: Check that MySQL is running on address localhost. Check that MySQL is reachable on port 3306 (note: 3306 is the default, but this can be changed). Check the user root has rights to connect to ...

The connection working well in localhost but after publishing the app to IIS it gives the exception below. MySqlException: Unable to connect to any of the specified MySQL hosts.

I can connect to MySQL via MySQL Workbench without any problem using localhost:3306 (host), root (login), password. But when I type it in VS Code it won't work.