If Notifications are getting delayed on iPhone, you can end up missing important messages, emails and other alerts. You can find below the steps to troubleshoot and fix this problem.
Late or Delayed Notifications on iPhone
In many cases, the problem of late or delayed Notifications on iPhone is usually related to WiFi/Cellular network being spotty and other network related problems.
However, this problem is also known to occur when the battery level on iPhone goes below 20%, which automatically enables Low Power Mode on iPhone.
In other cases, the problem appears to related to Scheduled Notification Summary option being enabled on iPhone, which sometimes is known to delay notifications from certain Apps.
1. Check Network Strength
Take a look at the top-left corner of the screen on your iPhone and make sure that the signal strength at your current location is good.
If the reception is poor, try moving from your current location to another place where you can get a good network connectivity.
2. Enable Notification Previews
It is possible that you are missing Notifications due to Notification Previews being disabled on your device.
Go to Settings > Notifications > Show Previews > select either Always or When Unlocked option.
This will ensure that Notifications are displayed on the screen of your iPhone.
3. Disable Notification Summary
iPhone provides the option to schedule a Notification Summary to appear at specified times. However, when this option is enabled, it can prevent certain Apps from sending Notifications to your device.
Go to Settings > Notifications > Scheduled Summary > move the toggle next to Scheduled Summary to OFF position.
After this, you should find Apps providing timely Notifications on your device.
4. Enable Notifications for Apps
Make sure Notifications are allowed on your device for Messages, WhatsApp and other Apps from which you want to receive Notifications.
Go to Settings > Notifications > select the App from which you want to receive notifications.
On the next screen, make sure Allow Notifications option is turned ON (green).
Repeat the above steps for all other Apps from which you want to recieve Notifications.
5. Disable Low Power Mode
Low Power Mode prevents apps from running in background, which can lead to Notifications being delayed on iPhone.
Go to Settings > Battery > move the slider next to Low Power Mode to OFF position.
6. Disable Do Not Disturb Mode
Another common reason for Delayed Notifications on iPhone is due to iPhone being in Do Not Disturb Mode.
Go to Settings > Focus > Do Not Disturb > move the toggle next to Do Not Disturb to OFF position.
7. Disable Driving Mode
By default, iPhone won’t display Notifications if it is placed in Driving Mode.
Go to Settings > Focus > Driving > move the toggle next to Driving to OFF position.
Note: Sometimes, iPhone can automatically switch into Driving Mode. You can prevent this from happening by using steps as provided in this guide: How to Turn OFF Do Not Disturb While Driving on iPhone
8. Restart iPhone
Sometimes, the problem is simply due to stuck process or minor glitches interfering with proper functioning of Apps on your device.
Go to Settings > General > scroll down and tap on Shut Down. On the next screen, use the Slider to Power OFF iPhone.
Allow iPhone to completely Power OFF > Wait for 30 seconds > Restart your device.
9. Turn off Low Data Mode
While enabling Low Data Mode helps in reducing data usage on iPhone, it prevents background activities by apps, which can delay notifications by apps on your device.
Go to Settings > Cellular > Cellular Data options > move the toggle next to Low Data Mode to OFF position.
Similarly, go to Settings > WiFi > Cellular Data options > move the toggle next to Low Data Mode to OFF position.
10. Install iOS Update
Notifications can get delayed if there is an iOS update waiting to be installed on your device.
Go to Settings > General > Software Update.
On software update screen, tap on Download and Install (in case a software update is available).
11. Update Apps
If the problem is related to a specific App, make sure that the latest version of the App is installed on your device.
Open the App Store on your iPhone and tap on Account Icon.
On the next screen, tap on Update All or update individual Apps by tapping on the Update option next to the Apps.
Note: Update option will only be available, if an update is available for any of the Apps installed on your device.
12. Reset All Settings
If above methods did not help, the problem might be due to incorrect or corrupted Settings on your device.
Note down your WiFi Network Password > go to Settings > General > Reset > On the next screen, select Reset All Settings option.
On the Confirmation pop-up, tap on Reset to Confirm.
After the Reset process is completed, join WiFi Network by entering WiFi Network Password and see if Notifications are now working properly on your device.