I appreciate the follow-up response, @passworddude. I'll put you in touch with our support team so you can get the assistance you need to access your QuickBooks Desktop (QBDT).

Since the issue persists after performing the troubleshooting steps suggested by my colleagues, I recommend reaching out to our customer service team so they can look deeper into the problem by means of screen-sharing. They may also conduct an investigation if necessary. To do that:

1. Go to the Help menu and click QuickBooks Help.
2. Select Contact Us.
3. Provide a brief description of your concern, and click Continue.
4. Log in to your Intuit account, select Continue, then Continue with my account.
5. Enter the single-use code you received in your email and hit Continue.
6. Choose between Chat with us or Have us call you.

Additionally, you create a user in QBDT with a specific role and access to assist you in managing your books.

Keep in touch whenever you have additional queries about logging in to your company file. The Community team is available 24/7 to help. Stay safe, and have a good one.