Fatal schannel issue "A fatal alert was received from the remote endpoint. The TLS protocol defined fatal alert code is 51"

Question

Recently working on a vps Windows 2012r2 server. Ran into a fatal schannel issue.

A fatal alert was received from the remote endpoint. The TLS protocol defined fatal alert code is 51.

Tracked this back to a KB2992611 which was installed on the system. I followed, probably some bad advice although it did resolve the fatal issue, and uninstalled KB2992611. I then tried to reinstall the revised KB2992611 and KB3018238 and both state the update is not applicable to your computer. I am running the Windows-8.1 version of the installs.

KB3011780 for Kerberos is installed successfully.

All available patches and updates from windows update are installed. MS Baseline Security Analyzer 2.3 reports all available patches are installed.

The question; since the revised updates will not install (KB2992611 and KB3018238) is the system at risk for the original security issue? If so, how can the situation be corrected?

Thanks