we have set up a custom clientless SSL VPN portal that redirects to a page on our sharepoint 2013 intranet. On this intranet page, we have several https links that redirect to different internal web applications. This works well for applications that are hosted on WS2012R2, including pass through of login credentials. However, we have also two https links that point to applications that are hosted on WS2016. For these applications, we receive a "server unavailable" error. We have discovered that, once we disable the SSL ciphers that were introduced in WS2016, thus only retaining the ciphers that exist in WS2012R2, the redirect to these applications work fine. In attachment is an overview of the disabled ciphers. Is it a known issue that ASA5545 can not handle the newer ciphers that are introduced in WS2016?
Thanks in advance for sharing any thoughts on this.