IIS 10 on Windows Server 2016
Just a note that I performed the following registry hack on my server and after a reboot I’m successfully performing stapling, yay!
To enable OCSP stapling for SNI and CCS bindings, locate the following registry subkey:
[HKLM\Sysytem\CurrentControlSet\Control\SecurityProviders\SCHANNEL]
To this subkey, add the following key:
"EnableOcspStaplingForSni"=dword:00000001