Installation and configuring plug-in Authorize.Net Direct Checkout (PCI compliance) Pay attention! https://support.authorize.net/knowledgebase/Knowledgearticle/?code=000001526 Authorize.net indicates that only tls 1.2 is supported. In IIS under bindings you need to check disable TLS 1.3 over TCP along with all others and everything started working with Authorize.Net
For Windows Server 2022 or never. This version of windows uses tls 1.3 by default which is not supported by the Authorize.net API.