We had the same problem, but with Wells Fargo tech support we found that Wells Fargo thinks we are using an old browser (didn't say which one; our browser is supported and up to date). We checked to see that our Quickbooks was up to date (R13P) - it was.
Then we decided to DeActivate the Bank Feed, restart Quickbooks, then Setup New Bank Feeds.
Wells Fargo will ask for your UserID and PIN/Password (what they really mean is your Password, the same one you log in normally on a web browser into Wells Fargo). We were able to perform a Direct Connect successfully at that point. There are about 10 items that could affect connectivity (internet loss, old browser, different default browser, etc.) but re-setting up the Direct Connect from scratch worked for us. Windows 8.1
