Since this evening (March 10, 2026), I'm unable to launch any developer-signed app on my physical device (iPhone 16 Pro Max, iOS 26.4 beta 23E5223k). The error is:
"Unable to launch [app] because it has an invalid code signature, inadequate entitlements or its profile has not been explicitly trusted by the user."
On the device itself, it shows: "Unable to Verify App - An internet connection is required to verify the trust of the developer."
What I've tried:
- Created a new Apple Development certificate
- Deleted and reinstalled the app
- Restarted the device
- Tested on both Wi-Fi and cellular
- Confirmed Developer Mode is enabled
- Removed all third-party CA certificates from the device
- Verified the code signature is valid (codesign -dv shows correct Authority chain)
The root cause:
https://ppq.apple.com is currently returning 502 Bad Gateway. I confirmed this both from my Mac (curl -s -o /dev/null -w "%{http_code}" https://ppq.apple.com → 502) and from Safari on the device.
This affects all developer-signed apps, not just a specific project.
Is anyone else experiencing this? Is there an ETA for the fix?
Environment:
- Xcode 26.3 (17C519)
- macOS 26.3.1 (25D2128)
- iPhone 16 Pro Max, iOS 26.4 (23E5223k)
