diff --git a/system/default.nix b/system/default.nix
index ecb5e8f6..6def214a 100644
--- a/system/default.nix
+++ b/system/default.nix
@@ -128,6 +128,9 @@
 
     firewall.allowedUDPPorts = [
       18000 # Anno 1800
+      9999 # DashPanel
+      9995 # TelemetryApp
+      9996 # TelemetryApp
     ];
     firewall.allowedUDPPortRanges = [ ];