Having this same problem. I've tried so many things. Rebooted iPhone (twice) Tried installing multiple different apps Cleaned build folder in Xcode (multiple times) Removed and re-added Apple ID in Xcode → Settings → Accounts Toggled automatic signing off and back on Deleted app from iPhone before rebuilding Attempted to clear local provisioning profiles (~/Library/MobileDevice/Provisioning Profiles/ — was already empty) Revoked development certificates from developer.apple.com Let Xcode regenerate fresh certificates and profiles Disabled iCloud Private Relay (was already off) Verified no VPN, content blockers, or DNS profiles active Tested on cellular only (WiFi disabled) Verified Date & Time set automatically Reset Network Settings on iPhone Reset All Settings on iPhone Toggled Developer Mode off and back on Disabled Do Not Disturb / Focus modes Checked Apple System Status page