I tried the lower case user name and short password.
The issue is that QB is trying to link to https://www.liveoakbank.com/ but that is not the correct URL because once you get to that URL you must click on Sign in, then select your banking style. The issue is that the URL needs to be https://secure.liveoak.bank/login. QBO needs to link to that URL not the previous one. @support should figure this out.
