Is your Personal Hotspot enabled? If so:
On your Mac:
• Open Xcode.app.
– Window -> Devices & Simulators: Select the problematic iPhone.
– Connect problematic iPhone to Mac via USB.
On your problematic iPhone:
• Open Settings.app.
– Personal Hotspot -> Allow Others to Join: Toggle Off.
– Wi-Fi: Toggle Off.
– Bluetooth: Toggle Off.
( wait for connectivity error to clear on Xcode)
– Wi-Fi: Toggle On.
– Bluetooth: Toggle On.
• Disconnect iPhone from USB.
Some notes:
• The problem might be aggravated by having a SIM-enabled Apple Watch connected via Bluetooth to the problematic iPhone (both of which use the same cell provider).
• The problem seems not to occur if you enable the Personal Hotspot before enabling WiFi & Bluetooth on the iPhone (ie - USB only hotspot).
• I've filed a bug with Apple about this (FB13287330).
Topic:
Developer Tools & Services
SubTopic:
Xcode
Tags: