Using a mid-2014 rMBP, and trying to use instant hotspot with either an iPhone 6 Plus or iPad Air 2. Both show up under the Personal Hotspot section of my WiFi menu with battery usage, signal strength and other details, but when I click on them, it refuses to connect. The old way (by switching hotspot on and connecting manually) still works though. I can also use instant hotspot to tether the iPad to the iPhone and vice versa, but both cannot cannot connect to the MBP. Using 10.10.1 for MBP, and 8.1.1 for both iPhone/iPad. I tried everything: resets, power cycling, changing the names of devices, all the tricks that were mentioned in previous threads to no avail. Handoff works, Continuity works, but not this? I don't get it. It's definitely specific to Yosemite too since I can use instant hotspot between my iPhone and iPad devices. Has anyone experienced similar and tried something that worked that may not have been mentioned before in other threads? I'm at my wits end.