diff --git a/v2rayN/v2rayN/Handler/SpeedtestHandler.cs b/v2rayN/v2rayN/Handler/SpeedtestHandler.cs
index 98ea503f..711b67dc 100644
--- a/v2rayN/v2rayN/Handler/SpeedtestHandler.cs
+++ b/v2rayN/v2rayN/Handler/SpeedtestHandler.cs
@@ -34,6 +34,10 @@ namespace v2rayN.Handler
                 {
                     continue;
                 }
+                if (it.port <= 0)
+                {
+                    continue;
+                }
                 _selecteds.Add(new ServerTestItem()
                 {
                     indexId = it.indexId,
diff --git a/v2rayN/v2rayN/Views/MainWindow.xaml b/v2rayN/v2rayN/Views/MainWindow.xaml
index 36724273..dfd71a79 100644
--- a/v2rayN/v2rayN/Views/MainWindow.xaml
+++ b/v2rayN/v2rayN/Views/MainWindow.xaml
@@ -339,7 +339,10 @@
                         VerticalAlignment="Center"
                         ClipToBounds="True"
                         Style="{StaticResource MaterialDesignToolBar}">
-                        <ListBox x:Name="lstGroup" Style="{StaticResource MaterialDesignChoiceChipPrimaryOutlineListBox}">
+                        <ListBox
+                            x:Name="lstGroup"
+                            FontSize="{DynamicResource StdFontSize}"
+                            Style="{StaticResource MaterialDesignChoiceChipPrimaryOutlineListBox}">
                             <ListBox.ItemTemplate>
                                 <DataTemplate>
                                     <TextBlock Text="{Binding remarks}" />