There are several common reasons why an alert might not have been received:
- The alert was not actually generated or sent by the system.
- The device was turned off, in flight mode, or had no cellular coverage.
- The device was connected to a 2G or 3G network or Wi-Fi only (some alerts require 4G/5G).
- The device does not have the latest software updates or is not compatible with emergency alerts.
- Alerts got caught in spam filters or the notification limits were reached.
- Technical network issues or outages from the carrier or service provider.
- On some phones, alert settings might be turned off or the device had poor signal at the time of transmission.
Ensuring the phone is updated, has good cellular connectivity (preferably 4G/5G), alert settings are enabled, and the device is compatible can help prevent missing alerts. Also, some specific network outages or technical issues might temporarily affect alert delivery.
