Mysql: can access through phpadmin, cannot access from wiki software

I’m getting the following error when accessing my wiki:
Sorry! This site is experiencing technical difficulties.
Try waiting a few minutes and reloading.
(Can’t contact the database server: Unknown MySQL server host ‘’ (1) (

I’ve waited and the error is not clearing up. I can access this server without a problem through phpadmin. I’m not sure why the wiki can’t see it. Help?


The database hostname you’ve entered there “” is incorrect. Database hostnames should never include underscores.

Try “” instead?

That was it. Thank you!