Bluetooth PAN has a self-assigned IP address
I've been trying to connect my MacBook Air (13-inch Mid 2012) to my iPhone to use the phone as a hotspot. Bluetooth hooks up just fine, but when I look Settings / Network / Bluetooth PAN, it says "Bluetooth PAN has a self-assigned IP address and will not be able to connect to the internet." I'm running macOS High Sierra with all updates applied.
I can connect my iPad Pro to the phone just fine to access the internet, so the hotspot is set up and working OK.
MacBook Air (13-inch Mid 2012), OS X El Capitan (10.11.6), Thunderbolt display