While normal hotspot interaction functions perfectly between an iPhone 6 (iOS 8.4) and my MBPr '14 with Yosemite 10.10.4, the Instant Hotspot feature does not. This feature used to work, but after some time this feature stopped working. I found the source of the issue, but can't determine how to resolve it.
My Yosemite logs reveal some errors.
com.apple.preferences.icloud.remoteservice: [-[CastlePlugin appleIDNeedsFixing]]
accountsd: Deleting com.apple.gs.appleid.auth service token
AppleIDAuthAgent SERVER AppleIDAuth: Forgetting account "<my-apple-id>@?????.???"
SDHotspotBrowser::appendHashToData:withType: No apple ID hash
SDHotspotBrowser::restartAdvertisingTetheringRequest Did not start advertising request
Steps I've tried that have not worked:
- Signing out and back in to AppleID on both devices
- Clean restore of iOS to iPhone
- Ensuring wifi and bluetooth enabled on both devices, neither with an active wifi connection
- All the above steps with full LTE coverage and 12 inch proximity between devices