diff --git a/app/src/main/java/eu/faircode/netguard/ActivityMain.java b/app/src/main/java/eu/faircode/netguard/ActivityMain.java
index be6206e2..a3517414 100644
--- a/app/src/main/java/eu/faircode/netguard/ActivityMain.java
+++ b/app/src/main/java/eu/faircode/netguard/ActivityMain.java
@@ -193,7 +193,6 @@ public class ActivityMain extends AppCompatActivity implements SharedPreferences
                 prefs.edit().putBoolean("enabled", isChecked).apply();
 
                 if (isChecked) {
-
                     String alwaysOn = Settings.Secure.getString(getContentResolver(), "always_on_vpn_app");
                     Log.i(TAG, "Always-on=" + alwaysOn);
                     if (!TextUtils.isEmpty(alwaysOn))
@@ -213,13 +212,8 @@ public class ActivityMain extends AppCompatActivity implements SharedPreferences
                             return;
                         }
 
-                    String dns_mode = Settings.Global.getString(getContentResolver(), "private_dns_mode");
-                    Log.i(TAG, "Private DNS mode=" + dns_mode);
-                    if (dns_mode == null)
-                        dns_mode = "off";
-                    if (!"off".equals(dns_mode)) {
+                    if (hasPrivateDns()) {
                         swEnabled.setChecked(false);
-                        Toast.makeText(ActivityMain.this, R.string.msg_private_dns, Toast.LENGTH_LONG).show();
                         return;
                     }
 
@@ -270,8 +264,12 @@ public class ActivityMain extends AppCompatActivity implements SharedPreferences
                     ServiceSinkhole.stop("switch off", ActivityMain.this, false);
             }
         });
-        if (enabled)
+        if (enabled) {
             checkDoze();
+            if (hasPrivateDns()) {
+                swEnabled.setChecked(false);
+            }
+        }
 
         // Network is metered
         ivMetered.setOnLongClickListener(new View.OnLongClickListener() {
@@ -1117,6 +1115,22 @@ public class ActivityMain extends AppCompatActivity implements SharedPreferences
         }
     }
 
+    private boolean hasPrivateDns() {
+        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
+        boolean filter = prefs.getBoolean("filter", false);
+        if (filter) {
+            String dns_mode = Settings.Global.getString(getContentResolver(), "private_dns_mode");
+            Log.i(TAG, "Private DNS mode=" + dns_mode);
+            if (dns_mode == null)
+                dns_mode = "off";
+            if (!"off".equals(dns_mode)) {
+                Toast.makeText(ActivityMain.this, R.string.msg_private_dns, Toast.LENGTH_LONG).show();
+                return true;
+            }
+        }
+        return false;
+    }
+
     private void menu_legend() {
         TypedValue tv = new TypedValue();
         getTheme().resolveAttribute(R.attr.colorOn, tv, true);