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

Code Signing Certificates, Identifiers & Profiles

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Created Mar ’26

Replies 139

Boosts 172

Views 13k

Participants 128

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)

Answered by DTS Engineer in 879488022

Well, that was exciting |-:

It looks like Apple fixed the issue.

Yep.

I can’t really go into details here, other than to say that:

ppq.apple.com is a service on the critical path for the trusted execution of code in some situations [1].
It was having problems.
Those are now fixed.

I don’t have time to read through all 10 pages of posts on this thread. So, if there’s something you want to draw my attention to here, I recommend that you start a new thread with the details.

Share and Enjoy
—
Quinn “The Eskimo!” @ Developer Technical Support @ Apple
let myEmail = "eskimo" + "1" + "@" + "apple.com"

[1] There might be more info about it on the enterprise support side of things, but the only developer-focused reference I could find for it was in an old Xcode help page: Manually trust a developer on iOS.

andrewrich OP

Mar ’26

Thank you for posting this! It was driving me batty. I know my EAS staging builds were installing on my dev devices just fine a few days ago, but mysteriously failing this morning? At least I have something to watch and check for in the future.

techbob OP

Mar ’26

Just wasted an hour thinking it was on my end. <sigh>

mrdrhamm OP

Mar ’26

Same issue here. We use expo application services ad-hoc builds

Four-Seven OP

Mar ’26

Yep same here - was so confused and went through similar steps to OP. But to no avail. Having to resort to using the simulator but not ideal!

janaaiv OP

Mar ’26

would’ve been great to know before i went digging in derived dependencies, revoked half my certificates and devices, went digging through my phone’s dev mode configurations… 😅😅😅

Palmerodev OP

Mar ’26

still not working?

dylantmorgan OP

Mar ’26

Also experiencing the same thing with flutter + Xcode

rajendra__patta OP

Mar ’26

For local development to unblock , one can try : Offline development profiles - this basically ignores the ppq checks.

https://developer.apple.com/help/account/provisioning-profiles/provisioning-profile-updates/

Akshit_Singla_49 OP

Mar ’26

Same here

rifts OP

Mar ’26

Wow, I've been going insane the last 2+ hours trying to figure out this, glad I found this post and im not crazy. Seems like a deeper issue we need apple to solve.

lord 7ouda OP

Mar ’26

SAMEEEEEE

JohannesV OP

Mar ’26

Tried so many things. Frustrating, because I thought it was a local issue. After trying on different iPhones, different accounts, I started doubting it is an Apple issue. Then I found this topic.

rajendra__patta OP

Mar ’26

For local development to unblock , one can try : Offline development profiles - this basically ignores the ppq checks.

https://developer.apple.com/help/account/provisioning-profiles/provisioning-profile-updates/

TomBonesmallone OP

Mar ’26

Same here. Same failures on multiple devices.

AuckFpple OP

Mar ’26

Well one of us basically hosed his entire app fighting this issue until I found this. SO this 502 has done significant damage to my app and I wish there was a way for me to reset today rather than having to go chase the world. I deleted certificates, rebuilt them and I run a few apps. Damnit Crapple.

JMGSalinas OP

Mar ’26

Ugh I hate this, tho I guess its ok I’m not the only one. I hope apple will move on this quickly.

pvmederos OP

Mar ’26

oh nooooo I just spent the past few hours troubleshooting this from so many angles... even wiped my phone + MacBook 😑 still not luck as of 2:18pm PT btw.

Al3c OP

Mar ’26

I've been trying for an hour, I thought I had destroyed something, then it occurred to me to check here.. On developer system status everything looks fine

vlad163 OP

Mar ’26

I spent an hour with Apple Support and it seems they're not aware of the issue. Please reachout to apple developer support so they get higher priority to resolve this. It can be done through developer apple site: developer.apple.com / contact / topic / select

Avallejo1382 OP

Mar ’26

I have the same problem, I can install my app in my physical Iphone. I'm getting the message an Internet conection is requiered, but I have Internet conecction.

bug05 OP

Mar ’26

Boost the topic if you haven't already.

PROTOHM OP

Mar ’26

I'm having the same problem. It worked on my test iPhone until 7 PM UTC, but now it only works on the emulator.

IgorKos OP

Mar ’26

Same with me starting with 03/9 right after update to 26.3.1

salva_vidaurre1 OP

Mar ’26

Same!

asenet OP

Mar ’26

After 4-5 PM CET it has stopped working :(