A browser that only has TLS 1.0 support won't be able to establish an HTTPS session with a server that has only TLS 1.1 and TLS 1.2 support.
This typically results in a cryptic (to a normal user) error about a cipher suite mismatch or in IE even misinforms the user.
IE 10 says,"•Make sure TLS and SSL protocols are enabled. Go to Tools > Internet Options > Advanced > Settings > Security"
IE 11 says "Turn on TLS 1.0, TLS 1.1, and TLS 1.2 in Advanced settings and try connecting to www.xyz.com again."
Is there a way to display a more informative message or page to a user in these cases that I am overlooking. I'd like to at some point disable TLS 1.0 and not have browsers that are still fairly common directing users to do things like enable SSL as that might cause them to go check all the available SSL and TLS boxes including SSL v2 and v3.