Shortly after linking my bank acct to QB, I received a message that the link between QB and the bank acct was lost. I don't remember the error code. Please advise.

I appreciate you for posting in the QuickBooks Community, akenson, about the error message you received after linking your bank account to QuickBooks Online (QBO).

If you can sign in to your bank account's website, it's a good sign that there isn't a major issue. I can provide the troubleshooting steps to resolve this. 

First, I recommend signing in to your bank's website and reviewing the following:

1. Check your account for messages, notifications, or alerts.
2. Look for any display issues as you navigate the website. These can block QuickBooks from downloading new transactions.
3. Check for any announcements about new security requirements.

If everything looks good, sign in to your QBO account through your browser's incognito mode to isolate the issue of this being a temporary browser problem. Here's how to do it on different browsers:

• Google Chrome: Ctrl + Shift + N
• Microsoft Edge: Ctrl + Shift + N
• Firefox: Ctrl + Shift + P
• Safari: Command + Shift + N

After you've opened the incognito window, log in to your QuickBooks account and manually click Update from the Bank transactions page. Proceed to clear your browser's cache if you don't encounter the same error message. You can use other devices and supported browsers to ensure everything works as expected.

To provide a more targeted solution and check if there are reported issues, may I kindly inquire about the bank's name? It would also greatly help if you could provide a screenshot of the error. 

If you need to categorize transactions after this, I'm adding this article as a guide: Categorize online bank transactions in QuickBooks Online. 

We'll be here in the Community if you have any updates about the error message you've received after linking your bank to QBO. We're committed to offering ongoing support. Take care.

@akesonbret-gmail 

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