diff --git a/FAQ.md b/FAQ.md
index 767075e3..7811dccd 100644
--- a/FAQ.md
+++ b/FAQ.md
@@ -471,6 +471,17 @@ and it is not meant to and does not hide your IP address.
Yes, NetGuard will automatically be started on boot if you powered off your device with NetGuard enabled.
+
+**(51) NetGuard blocks all internet traffic!**
+
+Make sure you have put NetGuard on the doze exception list (Android 6 Marshmallow or later)
+and that Android allows NetGuard to use the internet on the background.
+
+Make sure you are not running NetGuard in whitelist mode (check the NetGuard default settings).
+
+Some Android versions contain a bug resulting in all internet traffic being blocked.
+Mostly you can workaround this bug by enabling filtering in the advanced NetGuard settings.
+
**NetGuard is supported for phones and tablets only, so not for other device types like on a television or in a car.**
diff --git a/README.md b/README.md
index 8e466907..d6378c6d 100644
--- a/README.md
+++ b/README.md
@@ -229,6 +229,9 @@ Frequently Asked Questions (FAQ)
[**(50) Will NetGuard automatically start on boot?**](https://github.com/M66B/NetGuard/blob/master/FAQ.md#FAQ50)
+
+[**(51) NetGuard blocks all internet traffic!**](https://github.com/M66B/NetGuard/blob/master/FAQ.md#FAQ51)
+
Support
-------