I tried logging in from another computer and got the same problems. Same with a completely fresh re-install — it works perfectly fine up until the point where I have to log in, and then I get told that the password is wrong.
The theme I tried to install was Zeebusiness: http://wordpress.org/themes/zeebusiness
I’ll contact my webhost and see if they know anything, but if anyone else have ideas of what to try I’m all ears!
ETA: I’ve talked to my web host and according to them there shouldn’t be any problems with the server that could cause this problem.
I’ve cleared cookies and browser cache and tried logging in through Safari (I use Chrome, mainly). Still getting the same errors.
ETA: I can access the login page just fine, it’s the password I’m having trouble with and from the look of things that should not be related to Brute Force Attacks?