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 Play store. If you don't, the 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.
- On your Android device, open your device's Settings
.
- Tap Wi-Fi
Settings
- Turn on Keep Wi-Fi on during sleep.
- On your Android device, open your device's Settings
. 
Settings Try more fixes
If you need more tips, try these:
Turn on Duo notifications
Check that notifications aren't blocked in both these places:
- Your device settings: Open your device's Settings
- In the app: Open Duo
Turn off "Do Not Disturb"
Check that you don't have "Do not disturb" on. Learn more on how to turn it off or change its settings to allow notifications.
Check blocked numbers
Check that the phone number isn't blocked.
- On your Android device, open Duo
- Check that the phone number isn't listed.
Avoid using "Force stop"
If you've used "Force stop" to stop the Duo app when it wasn't working, you'll need to re-open the app to get notifications from it.
- Go to your list of apps.
- Tap Duo to open.
Allow Duo to work in the background
Check that background data is on for Duo and Google Play services.
- On your Android device, open your device's Settings
- Tap Apps
- Turn on Background data.
- Repeat the above steps for Google Play services.
Turn off "Battery Saver" mode
Battery saver can block Duo from sending notifications. Learn how to turn off battery saver.
Apps not made by Google, like Juice Defender or Antivirus, may not allow notifications to work. Other manufacturers may have their own battery saver modes to check:
- Sony: Try disabling “Stamina†mode.
- Huawei: Mark Duo as a protected app through Energy Saver
- Xiaomi/MIUI: Check that the power saving modes are off. Also, open the security app