@scflaming1
If you are getting an error, “saying those aren't the correct login and password”, it would seem that you need help from Vanguard more than from Inuit or the TurboTax community.
I had a 1099-R from a Vanguard Brokerage account. When I downloaded the content, I left out the blank spaces that are shown for the “Document ID” on the PDF version of the form that I downloaded from Vanguard’s website. If that does not work, I suggest giving Vanguard a call.
To @sgordon999's point, when accessing Vanguard’s website, I do occasionally have to receive a text message and enter a code, which is a form of two factor authentication. The “Document ID” on the 1099 forms also seems rather unique but not quite as short lived as a code received via text. I am not aware of any other purpose for the “Document ID”.
