"Connected" to Authorize.net, but still getting "Finger print value not valid". HELP!

[hmartin14]

I have both Authorize.net and Paypal connected for payments. Yet, when you try to purchase something, the credit cards are still not being accepted, with "Finger Print Value not valid" red warning message, not allowing you to make the purchase. What am I missing? 

[Adam7]

Is that a setting you have enabled in your Authorize.net settings? I'm wonder if something like that is enabled there so it's expecting to get that from our checkout.