Push notifications don't deliver when device is idle on iOS 18.7 and 26.0

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Created 1w

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There's a list of bug reports: FB19778882 FB19813796 FB19852724 FB19767262 FB20378888 FB20379383 FB20394663 Me and many other users have issue with push notifications. To reproduce this you should do this steps:

Lock iPhone and make it idle for 10+ minutes;
Send any message from other device via third-party app that uses push notifications (WhatsApp, Telegram and etc.);
After few attempts you can see, that messages don't deliver. They delivers immediately when I unlock iPhone or go to the app.

This bug reproduces on iOS 18.7 and 27. As I think iPhone goes to deep sleep after 10+ minutes after it locked and don't get push notifications. I've tried everything: many of settings, DFU without backup, but nothing helps to resolve this issue. Pay attention, please, cause this bug is very annoying and present on iOS 18.7 (that is the last for many devices) and latest iOS 26. Thanks!

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Answer 1

Engineer OP

Apple

1w

These developer forums are no suitable to discuss user level issues with other apps.

If you are the developer for an affected app with this issue, please send details of notifications that you have sent that has not been delivered. Please share the following details of a notification that has encountered the described problem on iOS 26. Please share a new example in the last couple of days.

exact time and date (including time zone) of the push request sent
exact time and date (including time zone) of the notification being received
the method of determining the delay (user anecdote, logging from app, logging from your servers, etc.)
the public IPv4 address of the server used to send the push
the apns-id

If you can't provide the apns-id, we'll need some of the following info

your push topic (apns-topic header value)
your app’s Bundle ID
the device token
full contents of the headers and the payload
any logging you have from the server side that shows the interaction with it and APNs.

If you are not comfortable with sharing the latter info publicly, please file a new bug report, share that info and let me know the Feedback ID here.

We might further contact you for some diagnostic logs.

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