If the window to link bank accounts does not load for hours, is there another way to link a bank account?

I'll help you link your Chase account in QuickBooks, honeyhairstudio2.

Yes, there are ways to resolve this. First, can you share if there are errors that occurs? This helps me share appropriate information about your concern.
 

We can bring your bank transactions successfully into the program using an incognito window. A full cache can cause QuickBooks not to perform well and can result  odd behavior. This prevents your browser from storing additional cache files.
 

•  Google Chrome: Ctrl + Shift + N
• Mozilla Firefox: Ctrl + Shift + P
• Safari: Command + Option + P

If the same thing happens, we can proceed using other compatible browsers with QuickBooks Online. The following browsers are supported on both web and mobile devices: 

• Google Chrome: version 78 or newer
• Mozilla Firefox: version 76 or newer. 
• Microsoft Edge: version 75 or newer
• Safari: version 12 or newer (Mac only)
• Opera: version 68 or newer
• Samsung: version 10 or newer

If you encounter a specific error, I recommend checking this article as it gives information on how we can fix it depending on the error you encounter: What to do if you get a bank error or can't download transactions in QuickBooks Online.

To manage your bank transactions from time to time, we can visit the links below for guides:

• Categorize and match online bank transactions.
• Reconcile an account in QuickBooks Online.
• Set up bank rules to categorize online banking transactions.

Please let me know if you have other questions about linking a bank account and handling bank data. I'll be around to guide you further. Take care and stay safe! 

 Hi honeyhairstudio2,

Hope you’re doing great. I wanted to see how everything is going about linking bank accounts in QBO. Was it resolved? Do you need any additional help or clarification? If you do, just let me know. I’d be happy to help you at anytime.

Looking forward to your reply. Have a pleasant day ahead!