UPLOADING FROM VANGUARD

When uploading from Vanguard, I put in the account number and document id number, and get a message from Vanguard that the connection is fine, I can return to TurboTax.  When I return to Turbo Tax and click Continue, I have to go through the same procedure with the numbers.  I am in an endless loop.  How do I get the actual upload into TurboTax?