Final answer:
The error message 'Unable to establish connection with database' means the application can't connect to the database due to possible issues like wrong credentials, network problems, server status, or firewall settings. Troubleshooting these aspects usually resolves the error.
Step-by-step explanation:
When you encounter the error 'Unable to establish connection with database', it suggests that the application attempting to communicate with the database is unable to do so. This can be due to a variety of reasons such as incorrect database credentials, network issues, database server not running, or firewall settings blocking the connection.
Common Solutions Include:
- Checking and confirming the database server is running
- Verifying the database credentials (username, password, database name) are correct
- Ensuring there are no network issues and that the correct port is being used
- Confirming that firewall settings are not preventing the connection
By methodically troubleshooting each of these potential issues, you can identify and solve the problem, restoring the connection to the database.