Push notifications are not sent to iOS device after regaining internet connection

[huynguyennang-fruitstreet]

New Issue Checklist

• [x] I have read the Documentation
• [x] I have searched for a similar issue in the project and found none

Environment details

Info	Value
iOS Version	> 13
Quickblox iOS SDK version	2.17.10
Xcode Version	13.3.1
Repro with our demo sample	https://github.com/QuickBlox/quickblox-ios-sdk/tree/master/sample-push-notifications-swift

Did this work before? No

Expected behavior Also when in airplane mode (to emulate loss of network connectivity), a notification were logged in the QB queue, but even after re-gaining network connectivity, the notification doesn’t appear on my phone.

Actual behavior Receive Push notifications after regaining internet connection

Steps to reproduce the behavior

• Turn on airplane mode: 2-3 mins

• Using dashboard send a push notification, it show in Queue below

• Waiting for 2-3 mins

• Turn off airplane mode: Wifi and cellular is available

• Don't get this push notification

Any others comments

• I try sent with iOS SDK and API, I got the same issue
• Maybe, we send push notification with set apns-expiration : 0, Refer apns-expiration

[IlliaChemolosov]

This is Illia from Quickblox This issue fixed by the server side.