We just got our LiftMaster with WiFi installed last week. Had no problem linking the 2012 535 and the 2017 340, but the 2012 X5d and the 2006 Jeep Grand Cherokee would not work. We've tried a bunch of different things, worked on it for nearly an hour with no results.
I'm about to go and try some of the suggestions from here and hope that one of them will work finally!
*Update* I have tried it every which way and still no luck. My E70 will NOT link to either the remote nor to the door