This a Microsoft error, and it means that the provided username or password is incorrect.
- Username: In most cases this is the full email address (eg. [email protected]) of the account which has write permissions to the room you want to set up with Fishbowl (or the room itself, e.g. [email protected]). Some Exchange servers require this value to be only the "user" segment of the email address. And some others require this value to include the domain as well (e.g. domain\\user).
- Passwords are case sensitive.