ppq.apple.com returning 502 Bad Gateway - Unable to verify developer apps on device

Code Signing Certificates, Identifiers & Profiles
simonsruggi OP
Created 2h
Replies 93
Boosts 133
Views 5.6k
Participants 86

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)
Replies  93
Boosts  133
Views  5.6k
Participants  86
WxDev OP
2h

Same. Started about an hour ago for me. Tried updating devices, restarting Macbook, etc. Same message everytime.

"Unable to Verify App"

46
bengovernment OP
2h

Yep, same here. guessing it's some kind of outage.

33
alanshutko OP
2h

Glad to see it isn't just me.

35
str-ccoppoletti OP
2h

The application could not be launched because the Developer App Certificate is not trusted.

Same here. Can't sign mobile app builds from xCode.

2
farmforge1 OP
2h

I am having this issue as well. No devices will build the app. 3 different iphones, 3 different computers. Any idea what is going on?

1
Bikrrr OP
2h

I really need some kind of alert system for posts like this so I don’t waste 20 minutes trying to fix something I can’t fix.

ChatGPT (eventually) led me to this thread…thank goodness.

46
Bruno_CM OP
2h

Same here. I thought it was my device or my app.

1
systembuilder OP
2h

haha same here - thank god for chatgpt

1
Pacango OP
2h

damn, i spent 30 minutes trying to reset everything :D started about an hour ago

1
LSpeed OP
2h

Okay I found this post after 30min trying find out the problem in my code. Because it's happened in exact same time when I decided to clone my app into other folder and tried to build cloned app on my iPhone/

1
ByronUnion OP
2h

We are seeing the same issue, enterprise app is a critical piece of our insfrastructure. Any ETA on a fix here?

1
vlad163 OP
2h

Same issue on my end. We have thousands of iPads not being able to load Production app that users rely on for their business. This is crazy.

1
MicheleNoc OP
2h

Hi devs! same for me with Flutter, Swift, and different devices. I don't feel alone anymore haha I agree, a warning email would be needed for this inconvenience...

2
eldotta OP
2h

Same here. FWIW, I get a 200 (ok) from time to time. Dont be fooled, 502 should come when you try a couple of times.

1
silviofreitas OP
2h

Same here :(

1
ppq.apple.com returning 502 Bad Gateway - Unable to verify developer apps on device
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