Fix missing or delayed call notifications

If you're not getting call notifications or they’re delayed, try these tips to fix the problem.

Try common fixes

  • Re-open the app: To start Duo again, quit and re-open the app.
  • Download the latest version of the app: Check that you have the latest version of Duo from the app store. If you don't, the app page will say, "Update."
  • Connect to Wi-Fi: If you're using Wi-Fi instead of mobile data, make sure your Wi-Fi is on.
    1. On your iOS device, open Settings Settings
    2. Turn on Wi-Fi.

Try more fixes

If you need more tips, try these:

Turn on Duo notifications
  1. Open your device's Settings Settings
  2. Tap Notifications and then  Duo.
  3. Turn on Allow notifications.
Check blocked numbers
Check that the phone number isn't blocked.
  1. On your iOS device, open Duo and then More More and then Settings and then Blocked numbers.
  2. Check that the phone number isn't listed.
Turn off "Do not disturb"

Check if Do Not Disturb is on or off:

  1. Open your device's settings Settings.
  2. Tap Do Not Disturb.
  3. Make sure Do Not Disturb and Scheduled are off.  
Allow Duo to work in the background
To send you notifications, Duo needs to be on in the background. 
  1. Open your device's Settings Settings
  2. Tap General  and then Background app refresh.
  3. Turn on Duo.
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