What should I do if SQLyog Error 2002 persists even after confirming the MySQL server is running?

If the MySQL server is definitely running, the issue is likely network-related or with MySQL's binding. Check: 1. If MySQL is listening on the correct network interface using `netstat -an | grep 3306`. 2. Ensure no `skip-networking` directive is present in `my.cnf` or `my.ini`. 3. Verify the `bind-address` setting; if it's `127.0.0.1`, MySQL only accepts local connections. 4. Examine MySQL's error log (e.g., `mysql_error.log`) for messages about binding failures or other network issues.