I'm here to keep the process of linking bank accounts in QuickBooks Online easy and simple, lpowell1178.

I appreciate the details you've provided and the troubleshooting steps you performed to resolve this issue. May I know what's your financial institution? This way I can check our records if there's a bank connection issue. You may have an issue linking or connecting to your bank in QuickBooks Online (QBO) based on the following criteria:

• Your bank has multiple names on our list. Make sure you have selected the correct listing or have tried all possible links. Search by the banking sign-in URL to ensure you are using the correct listing.
• Your bank does not connect to all types of accounts (for example, personal accounts vs business accounts).

Your bank's URL will be automatically updated in QuickBooks as long as it is supported for Online banking connection. To ensure we're linking the correct account, as an initial step, let's log in to the bank's website. Once signed in, copy the bank URL and use it for searching and linking the correct account in QuickBooks. Here's how:

1. From the left menu, click Transactions and choose Banking.
2. On the Banking page, select the Link account.
3. In the Search field, enter the bank's URL.
4. Select your bank. If you see multiple options, you may have to repeat these steps to find the correct one.
5. Enter your bank login on your bank's website, then select Continue.

Once connected, QuickBooks will automatically download your most recent transactions. I recommend editing, assigning, and categorizing your transactions. Also, match them to the existing entries in the software. Just go to the For Review tab from the Banking menu. Doing so will help you ensure the accuracy of your financial records.

Alternatively, if you're still unable to link your financial institution, as a workaround, you can add your bank to the chart of accounts and bring in the transactions using a WebConnect file. 

Let me know the result of this troubleshooting in the comment below. I need to make sure this is resolved so you can start running your business processing. Have a good day!