Reconciling balance incorrect after verifying against statement 4 or 5 times

My checking account reconciling shows difference of $80. I verified balances and until last few transactions, my banking statement balances match that of Quicken. This is where the $80 difference appears. There is absolutely not at $80 difference. I tried adjusting balance and that completely set to incorrect balance. I tried clearing all transactions and then rechecking all transactions. Still nonexistent $80. I have been trying to work with this issue for too many hours to count. What am I missing?