My web server is (include version): IIS 8
The operating system my web server runs on is (include version): Windows 2012
I’ve migrated a website to another windows server and noticed that the callback from Worldpay payment gateway now displays an error “failed CAUSED BY Remote host closed connection during handshake”.
I know it is an SSL issue as removing the “https” from the callback URL, makes it work as expected.
I am suspecting that, as there are two sites on the server and this server only has one ip address (the old one had one per site), that Letsencypt has used SNI to issue the certificate?
I suggest this because I read several old posts on other sites saying that they’ve found Worldpay doesn’t like SNI based certificates. Worldpay support didn’t seem to know either way.
Has anyone had any experience on this, or have any suggestions?
Would a second IP address, then assigning one to each site, then re-issueing letsencrypt certificate fix this?
Second IP addresses are not that cheap from my current host, but needs be.