Hello mengelhart,

Welcome to the QuickBooks Community!  I'm happy to lend a hand with changing your bank's website address. All you'll need to do is disconnect and reconnect the account. Let me walk you through the steps below. 

1. Go to your Chart of Accounts and locate your bank account.
   • 
2. Under the action column, click the down arrow next to View register. Then, select Edit.
   • 
3. At the bottom of the screen, put a checkmark in the Disconnect this account on save box. Then, hit Save and Close.
   • 
4. Now, go back to the account and choose Connect bank under the action column.
   • 
5. In the search bar, paste your bank's web address and hit Enter.
   • 
6. Log in to your bank's website.

That's all there is to it. Let me know if you have any issues during this process. 

Take care and have a great day ahead!