I have a 2012 R2 RDS server crashing every week or so for no apparent reason. I have run a BlueScreenView analysis and that lead me to this hotfix, which matches all the aspects of the crashing perfectly:
https://support.microsoft.com/en-us/help/3127673/stop-error-0x000000c2-or-0x0000003b-when-you-re-running-remote-desktop-services-in-windows-server-2012-r2
However, when attempting to install this hotfix, I get the error "This update is not compatible with your system." There is no indication that this hotfix has been included in a subsequent cumulative update, so I'm not sure where to go from here.