diff --git a/Containers/notify-push/start.sh b/Containers/notify-push/start.sh
index c20b9c0d13b..f02544f71ad 100644
--- a/Containers/notify-push/start.sh
+++ b/Containers/notify-push/start.sh
@@ -27,6 +27,21 @@ elif [ "$CPU_ARCH" != "x86_64" ]; then
     export CPU_ARCH="aarch64"
 fi
 
+# Add warning
+if ! [ -f /nextcloud/custom_apps/notify_push/bin/"$CPU_ARCH"/notify_push ]; then
+    echo "The notify_push binary was not found."
+    echo "Most likely is DNS resolution not working correctly."
+    echo "You can try to fix this by configuring a DNS server globally in dockers daemon.json."
+    echo "See https://dockerlabs.collabnix.com/intermediate/networking/Configuring_DNS.html"
+    echo "Afterwards a restart of docker should automatically resolve this."
+    echo "Additionally, make sure to disable VPN software that might be running on your server"
+    echo "Also check your firewall if it blocks connections to github"
+    echo "If it should still not work afterwards, feel free to create a new thread at https://github.com/nextcloud/all-in-one/discussions/new?category=questions and post the Nextcloud container logs there."
+    echo ""
+    echo ""
+    exit 1
+fi
+
 # Set sensitive values as env
 export DATABASE_URL="postgres://$POSTGRES_USER:$POSTGRES_PASSWORD@$POSTGRES_HOST/$POSTGRES_DB"
 export REDIS_URL="redis://:$REDIS_HOST_PASSWORD@$REDIS_HOST"