It's my pleasure to give you an insight into banks that unable to connect in QuickBooks Online (QBO), @masterb1987-live.
There are a few possible reasons why you're unable to add the bank in QBO:
See the sample screenshot below for your reference:
If you're still unable to connect your bank after confirming the required details above, I'd suggest doing primary troubleshooting steps. To start, let's use a private browser when logging in to QuickBooks. It will help us isolate if the issue is specific to the browser.
If this fixes the error, we can go back to your regular browser and clear the cache storage to prevent unexpected behavior in the product. Otherwise, using other supported browsers can be a good alternative too.
On the other hand, if you're unable to find your bank, even if you're using the correct link or bank's name, you can request support for your bank. Let me guide you how:
For more information about the process, check out this article: Find your bank or credit card account when you connect to online banking.
In the meantime, you can manually upload the bank transactions into QBO.
Check this out for more details: Manually upload transactions.
Please browse through these articles below about conducting bank errors, and transactions won't download.
Please keep in touch with me here for all of your QBO needs. I'll always have your back. Take care!