On Mac OS X 10.11.2 or a different version? If on that version, you may not have properly uninstalled the version you tried before. It only worked for me once I uninstalled, rebooted, installed the rel8-pre1 version, and rebooted. Did you do each of these steps?
If it still doesn’t work for you, report back the error message (check syslog in console) to the tracker item Robert linked so they can know what the issue might be.
-hilmar
Thank you- But that version of HoRNDIS is one of the few i have already tried.