After installing the Windows 10 KB3163018 update, you are no longer able to load Call Manager 9.0.1 web interfaces that use a self signed certificate.
There’s a bit of talk on the KB here: https://community.spiceworks.com/topic/1666286-windows-10-kb3163018-breaks-stuff
And similar issues here for Viewmail on 11.5 – https://supportforums.cisco.com/discussion/13051441/cisco-viewmail-error
I haven’t been able to check whether this is resolved with a properly signed certificate, or whether it’s a limitation in the tomcat library.
Interestingly it doesn’t impact 7.1.5 clusters. I will check against 11.0.1 shortly.
UPDATE: 11.0.1 works fine, just the usual self signed certificate warning.