ConfigServer Community Forum

In reviewing the possible reasons supplied by Authorize.net in more detail, I see the item listed as "Your domain's TLS certificate does not use Server Name Indication (SNI). Authorize.Net is unable to validate SNI certificates at this time." and determined that the site *is* using SNI. Bu...

I contacted Authorize.net and they confirmed that only access to port 443 is needed and that I was whitelisting the correct IP addresses. They did, however, supply the following URL for possible reasons the response was timing out: https://support.authorize.net/s/article/Why-Are-My-SIM-Relay-Respons...

sawbuck, Thank you for the response. Unfortunately, I have already whitelisted both of the IP addresses that Authorize.net lists in that page, and have also verified that those are the IP addresses that the requests come from when the firewall is turned off and the response is successful. The URL be...

We are using a reservations system on a new web site. The payment processing in that system uses a hosted payment form at Authorize.net, and when the payment is successfully completed Authorize.net submits a POST back to the reservation system to confirm the payment and retrieves a "Thank You&q...