I had this error since 07.07.2023. And only Today - 08.16.2023 they found why I had this issue. After one update some how Payroll Cloud Services - QuickBooks Workforce (where employees has online access to paychecks and W-2's) - was ON. After QB consultant asked me to turn it off - everything become fine. No more error 2107.

So, if you have this option ON and have Direct Deposit error 2107, turn it OFF and see if your Payroll will go through!!!