I have recently updated to Quick Books Premier 2021.  When I tried to use Web Connect to download my bank transactions, Quick Books says I don't have a matching account.  I have had my bank accounts set up for 9 years.  I have no idea why now - after this update - QB won't recognize my bank accounts in my QB files.  If I open a new account as prompted by the bank feed process, it opens a new check register with no history of transactions and a $0 balance.  That is NOT what I want.  

It is not a bank error.  It is a QB error.  My bank account are there just like they have always been, but QB won't recognize them.

Why is this happening?