Quickbooks says my login/password is incorrect for SchoolsFirstFCU in the banking section. But it's not. Anyone else having this problem?

Try opening your QBO account on any private/incognito browser.

Just tried that. Same issue.

Consider to use one of the converter tools with a one time license (e.g csv2qbo @ $60) for the time being.
https://www.moneythumb.com/?ref=110

Hello @rwaldrep,

Thank you for reaching out to the Community. I’m happy to assist you with your School Federal Credit Union (FCU) issue.

If you are receiving a message stating "incorrect login credentials," it usually indicates that either the user ID or password you are entering is incorrect for the bank account you are trying to access.

Currently, there is an ongoing investigation (INV-115466) regarding Schools First FCU Error 103. I highly recommend contacting our live support team. They can add your information to the list of affected users and will provide updates once our engineers resolve the issue.

Here's how to connect with our live support:
 

1. Sign in to your QuickBooks Online company.
2. Click Help (?) at the top right.
3. Enter your concern, then select Let's talk.
4. Select Contact Us to connect with a live support agent.
5. Choose a way to connect with us:
   • Start a chat with a support expert.
   • Get a callback from the next available expert.

It is important to note that our support hours are as follows:
 

• Plus, Essentials, Simple Start M-F 6 AM to 6 PM PT and Saturday 6 AM to 3 PM PT
• Advanced, they are open 24/7

To understand more about the schedule of our support team, check out this article: Contact QuickBooks products and services support.

When you already have your online bank account connected to QBO, check out this article for details on how to categorize bank transactions.

If you have further questions about logging in to your bank, please let me know and I am always here to help. Stay safe!

I have encountered this problem before and on my end, I think it's a problem with connecting via Safari.  I just tried using Google Chrome and it worked.  It's still a problem that needs to be fixed ASAP.