Hi Terry.
I want to ensure you'll be able to process your payments with no error.
As an initial step, please make sure to use the correct credentials during the login. If the error continues, you can proceed with updating your EFTPS password as suggested above to narrow down the result.
If the authentication error continues, I would suggest reaching out to our Support Team. This way, a live representative can check and recover your login securely.
For the support's contact information, you can open this link: Contact QuickBooks Desktop support.
For more tips about handling electronic payments in QuickBooks Desktop, you can also check out these articles:
Please let me know how else I can help you with processing payroll taxes or payments. I'm more than happy to help. Have a good one!
