Helping out with connecting bank accounts to QuickBooks Online (QBO) is my specialty. Here are some easy steps to follow to help you connect your bank account to QBO:
Go to the Banking tab in the left-hand menu bar.
Select the Banking portion.
Tap Add Account near the right-hand corner in a green bubble.
Enter your bank name or URL in the search bar.
Click on your bank.
Follow the rest of the on-screen instructions with logging into your bank website to connect the account.
It's a piece of cake. If this doesn't work, please provide me with some additional information about the issue. You can also check out this link if you're receiving a banking error when trying to connect your account to help fix the problem.
Let me know if this helps. I'll be back around shortly!