Message accounts.intuit.com refused to connect

I'll work with you to resolve this connection error you have in QuickBooks Online (QBO), @garry-jowett. This way, you can get back to business in no time.

Before we start, I'd like to verify what specific task you want to perform (i.e., login, create invoices, etc.) when you receive the error message in QBO? Any additional details are much appreciated to help me provide the appropriate resolution for this matter.

This connection error can sometimes be caused by the browser's overtime collection of data from frequent page visits. To isolate this matter, you can perform some troubleshooting steps.

You can start by pulling up your QuickBooks Online (QBO) account using a private browser (incognito). Here's how:

• Press Ctrl + Shift + N (Google Chrome)
• Ctrl + Shift + P (Firefox)
• Control + Option + P (Safari)

Once signed in, perform the task you want. If you're able to do so, return to your default browser and clear its cache. This will refresh the system and remove older data that causes viewing and performances issue. However, if this matter continues, I'd recommend using other supported browsers. 

Also, to further guide you in managing your QuickBooks account and business transactions (income and expenses), I'd recommend checking out this article: QuickBooks Help Articles. It as well includes video tutorials to learn your way around the product.

Please keep me posted if you have other concerns about managing the growth of your business using QBO. Let me know in the comments, and I'll gladly help. Take care, and I wish you continued success, @garry-jowett.