I got the same message despite having never received any IP PIN from the IRS. TurboTax agent did the same google research I did and had nothing valuable to share. IRS ended my phone call: "too much volume." My wife and I suffered through getting IP PINs issued from the IRS and I refiled. Same code. Super frustrating. TurboTax simplies repoints me to the same "help" material over and over.
