diff --git a/lib/src/ui/widget/home/launch_button.dart b/lib/src/ui/widget/home/launch_button.dart
index e8b9403..c97462b 100644
--- a/lib/src/ui/widget/home/launch_button.dart
+++ b/lib/src/ui/widget/home/launch_button.dart
@@ -38,7 +38,6 @@ class LaunchButton extends StatefulWidget {
 }
 
 class _LaunchButtonState extends State<LaunchButton> {
-  static const String _kLoadingRoute = '/loading';
   final String _shutdownLine = "FOnlineSubsystemGoogleCommon::Shutdown()";
   final List<String> _corruptedBuildErrors = [
     "when 0 bytes remain",
@@ -175,7 +174,7 @@ class _LaunchButtonState extends State<LaunchButton> {
     }
 
     var matchmakingIp = _settingsController.matchmakingIp.text;
-    if(!matchmakingIp.contains("127.0.0.1") && !matchmakingIp.contains("localhost")) {
+    if(!isLocalHost(matchmakingIp)) {
       return false;
     }
 
diff --git a/lib/src/util/server.dart b/lib/src/util/server.dart
index a8cee4e..2ca1048 100644
--- a/lib/src/util/server.dart
+++ b/lib/src/util/server.dart
@@ -83,7 +83,7 @@ Future<void> resetWinNat() async {
 }
 
 List<String> createRebootArgs(String username, String password, bool host, String additionalArgs) {
-  if(password.isNotEmpty) {
+  if(password.isEmpty) {
     username = username.isEmpty ? kDefaultPlayerName : username;
     username = host ? "$username${Random().nextInt(1000)}" : username;
     username = '$username@projectreboot.dev';