To Fix "apple Push" Errors - How

Battery-saving features can restrict background activity; turn this off in Settings > Battery .

If you are an individual user not receiving notifications, start with these common device-level solutions: How to Fix "Apple Push" Errors

Provider servers sending notifications must allow outbound traffic on ports 443 or 2197 . Developer-Level Fixes Battery-saving features can restrict background activity

If you are developing an app and encountering errors, verify these backend and configuration steps: Troubleshooting push notifications - Apple Developer How to Fix "Apple Push" Errors