Is there a way I can make this work running Sierra? I just found out that their website says it works for Mac OS up to 10.11.
If it won't work with Sierra, is there a new alternative?
Thanks - Jack
Jack,
It looks like you need to install Keyspan 4.0 without disabling the SIP (System Integrity Protection) according to this article on Francis Fustier's blog:
Sierra and SIP
Thanks, but Keyspan V4 doesn't work.
Sorry that didn't work for you, Jack.
Before installing v4, Francis also recommends that you delete the older version of the Keyspan driver from:
• {your hard drive} /Library/Extensions
• {your hard drive} /System/Library/Extensions
and empty the trash.
If that doesn't work either, try disabling the SIP and then installing v4.
See Francis' blog:
Disable SIP instructions
P.S.: I replaced my Keyspan some time ago with a Shipmodul Mutliplexer that has a direct USB cable or WiFi for the Mac.