No Internet connection in Authenticator

Microsoft Authenticator itself does not require internet for time‑based verification codes, but it does require a working internet connection and access to Apple’s notification and backup services for:

• Push sign‑in notifications
• Restoring from iCloud backup

From the provided information and screenshots, the issue is not with Authenticator’s own network stack but with device or account restrictions on iOS (for example, parental controls, device management, or network restrictions) that are blocking iCloud and/or notifications. The Microsoft documentation recommends the following checks when Authenticator appears offline or cannot complete authentication:

1. Verify the device is actually online and can reach other services. If using mobile data, switch to Wi‑Fi and vice versa, and ensure Airplane mode is off.
2. Make sure the latest version of Microsoft Authenticator is installed. Microsoft does not support app versions more than 12 months old; update the app from the store if needed.
3. Turn off battery optimization for Authenticator in the app’s Settings to improve sync and connectivity.
4. In Authenticator Settings → Notification Settings, ensure “Show notifications” is turned on so sign‑in prompts can arrive.
5. Ensure the device’s date and time are set correctly and automatically; incorrect time can cause sign‑in and backup operations to fail.
6. If a VPN is enabled on the device, disconnect it temporarily and test again, as VPNs can interfere with connectivity to Microsoft and Apple services.
7. If an “Authentication did not complete” or similar error appears, also check that:
   • The Authenticator app is unlocked when trying to sign in.
   • Notifications are not set to silent or disabled at the iOS level.
   • The device has a stable network connection; try switching between Wi‑Fi and mobile data.

If, after these steps, the device still cannot restore from iCloud or shows no internet for Authenticator while other apps work, the remaining cause is likely iOS‑level restrictions (such as Screen Time/parental controls or a management profile) that block iCloud or background network access. Those restrictions must be removed or adjusted in iOS settings or by the device/organization administrator before Authenticator can use iCloud backup and push notifications.

References:

• Troubleshoot problems with Microsoft Authenticator
• Microsoft Authenticator FAQs
• Authentication did not complete