I am supporting a Classic ASP application that connects to a payment gateway via HTTPS. Up until recently there have been no issues. A few days ago the latest updates were
I know it is an old question. This issue could be because of unsupported cipher suites. Try adding - TLS_RSA_WITH_AES_128_CBC_SHA AES128-SHA - TLS_RSA_WITH_AES_256_CBC_SHA AES256-SHA
That means you have to follow this kb: http://support.microsoft.com/kb/948963 This update is also interesting if you are still using windows 2003. Which will allow connecting to site using SHA2 - http://support.microsoft.com/kb/968730
Please note that Windows Server 2003 support is ending July 14, 2015