I get this error if I've been closing and restarting my SSH sessions in a short window of time and goes away after awhile. I'm sure my password is correct. Each of my two client's response to the error doesn't give me a lot to go on for search engine troubleshooting.
Under mRemote on Windows 7, outside the main window a 2nd window is drawn which disappears immediately. The shell I opened (in a tab) will display only Using username "Bob". for a second or two before closing without notice.
Connectbot on Android is more specific. It connects to host and verifies. After the password prompt it tells me Authentication method 'password' failed.
What is happening here?