I have been using Quickbooks successfully for two years, and suddenly it will not connect with my bank. Quickbooks will not allow me to Update bank and Visa transactions.

Hi there, 

Welcome  to the Community. I see you've been with us for some time and I appreciate your loyalty. I'll be happy to help you with this issue so you're on the right track with achieving your goals. 

To get started, I'd like to start off by troubleshooting this issue to determine if it's a browser-related issue. Clearing cache and cookies is a great way to clean your browser allowing it to work more efficiently. Here's an article that shows you how to do that: How to clear cache and cookies. If this doesn't work, I suggest using a private/incognito window to see if that works instead. Try this out and let me know what happens. In case this issue persists, I encourage you to contact our support team so they can assist you further with this. Here are our contact details: 

• Schedule a Callback or start a Chat: click (?) in the upper right in QuickBooks Online > enter "Contact support" > choose Contact Us > provide a brief summary > select Let's Talk > choose Get a callback or Start a Chat.
• Social Media: Facebook, Twitter, and Instagram.
• Support hours are from Monday to Friday between 9 a.m. and 8 p.m. ET.

I'll be one message away in case you need further assistance.

@beaverhallbnb-gm 

Try opening your QBO account on any private/incognito browser.