I've been using Web Connect with my 401k and Roth IRA Vanguard accounts for years, without any issues. Just this past week, when I tried to download transaction with Web Connect, Quicken forced me into Direct Connect and messed up the balance (doubling the 401k account, but not the Roth IRA, which resulted in several placeholders in the 401k account, only one of which was listed in the tab). I've reinstalled twice from an earlier backup and it still results in the same affect. Seems like there's no way to download with Web Connect; it forces you into a Direct Connect connection. I'm going to try a third time.