I am not able to process credit cards

Hello, @Dgorm.

To be able to process credit card payments successfully, you have to check your firewall settings to ensure uninterrupted access when using QuickBooks Payments. For your guide, check out these articles:

• Set up firewall and security settings for QuickBooks Desktop
• Configure firewall or security software when using QuickBooks Payments

If possible, you can also try using other devices when processing payments.

In case you have any other payments concern in the future, feel free to read this article: Payments FAQ.

Post again if there's anything you need help with by adding a comment below. I'm a few clicks away to help. Have a good day!