APNS connection is closed. We cannot count exact number of delivered pushes.
This error usually happens when testing notifications for an ad-hoc/enterprise build of an iOS app. The most likely cause is that your the notification was sent via the wrong gateway due to a misconfiguration.
Apple have two notification gateways: one for sending to dev builds (sandbox) and the other for sending to production builds. To test with a production build you will need to have a production push notification cert uploaded. Navigate to Settings > Channels, select the Push Settings tab and the iOS Push option. Your iOS cert can be uploaded/re-uploaded as appropriate.
For help on generating iOS certificates, see iOS push notifications.
Updated 3 months ago