Connect with and learn from others in the QuickBooks Community.
Let's make sure that you're able to access the banking page, sn.
You can use the incognito window/private browser (Ctrl + Shift + N) to log in to your account.
If it's still showing the spinning wheel, let's clear your browser's cache. This way, your browser will be on a clean slate and enhance its speed performance.
Otherwise try switching another browser.
Feel free to post a comment if there's anything else you need.