Quote Originally Posted by mc12345678 View Post
What about the results of the curltester code found in the extras folder, extras/curltester.php?

Also, has the SSL3 been commented out as posted here: http://www.zen-cart.com/showthread.p...yment-security

Recommend the curltest first, the SSL change and then the curltest again after that... Then based on all reports to be able to offer a suggestion of further diagnosis.
CurlTest => GOOD for both Auth.net production and sandbox servers.

No SSLv3 to comment in Auth.net SIM

Script timeout seems strange to me since the response is instant. I would have expected some delay in page update before receiving the auth.net white screen.

Next ???

Not a fan of SIM but also not a fan of SAQ-D for AIM either. SAQ A-ep is much more palatable for PayPal and SIM.