Enabling Password Authentication In SSH Again

A while back I disabled password authentication, and now I use public key encryption to login to SSH. Today I reenabled password authentication, and when I try to login using a different computer without the key, I receive an access denied error. I know password authentication is enabled, because it will bring up a different error if it's not.
I must be missing a step somewhere.
I need to enable password protocol so my DC can login to my server.
Thanks in advance.