diff --git a/Netch/Controllers/NTTController.cs b/Netch/Controllers/NTTController.cs
index b32f550b..c6c799d8 100644
--- a/Netch/Controllers/NTTController.cs
+++ b/Netch/Controllers/NTTController.cs
@@ -1,6 +1,7 @@
 using System;
 using System.IO;
 using System.Linq;
+using System.Threading.Tasks;
 using Netch.Utils;
 
 namespace Netch.Controllers
@@ -20,7 +21,7 @@ namespace Netch.Controllers
         ///     启动 NatTypeTester
         /// </summary>
         /// <returns></returns>
-        public (string, string, string) Start()
+        public async Task<(string, string, string)> Start()
         {
             string localEnd = null;
             string publicEnd = null;
@@ -33,19 +34,30 @@ namespace Netch.Controllers
                 Instance.OutputDataReceived += OnOutputDataReceived;
                 Instance.ErrorDataReceived += OnOutputDataReceived;
                 Instance.Start();
-                var output = Instance.StandardOutput.ReadToEnd();
+
+                var output = await Instance.StandardOutput.ReadToEndAsync();
+                var error = await Instance.StandardError.ReadToEndAsync();
+
                 try
                 {
-                    File.WriteAllText(Path.Combine(Global.NetchDir, $"logging\\{Name}.log"), output);
+                    File.WriteAllText(Path.Combine(Global.NetchDir, $"logging\\{Name}.log"), $"{output}\r\n{error}");
                 }
                 catch (Exception e)
                 {
                     Logging.Warning($"写入 {Name} 日志错误：\n" + e.Message);
                 }
 
+                if (output.IsNullOrWhiteSpace())
+                    if (!error.IsNullOrWhiteSpace())
+                    {
+                        error = error.Trim();
+                        var errorFirst = error.Substring(0, error.IndexOf('\n')).Trim();
+                        return (errorFirst.SplitTrimEntries(':').Last(), null, null);
+                    }
+
                 foreach (var line in output.Split('\n'))
                 {
-                    var str = line.Split(':').Select(s => s.Trim()).ToArray();
+                    var str = line.SplitTrimEntries(':');
                     if (str.Length < 2)
                         continue;
 
@@ -69,14 +81,11 @@ namespace Netch.Controllers
                         case "result":
                             result = value;
                             break;
-                        default:
-                            result = str.Last();
-                            break;
                     }
                 }
 
                 if (bindingTest == "Fail")
-                    result = "UdpBlocked";
+                    result = "Fail";
 
                 return (result, localEnd, publicEnd);
             }
diff --git a/Netch/Forms/MainForm.cs b/Netch/Forms/MainForm.cs
index 858314eb..2e92692b 100644
--- a/Netch/Forms/MainForm.cs
+++ b/Netch/Forms/MainForm.cs
@@ -19,6 +19,13 @@ namespace Netch.Forms
 {
     public partial class MainForm : Form
     {
+        private void createRouteTableModeToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            Hide();
+            new Route().ShowDialog();
+            Show();
+        }
+
         #region Start
 
         private readonly Dictionary<string, object> _mainFormText = new();
@@ -1263,8 +1270,8 @@ namespace Netch.Forms
             Task.Run(() =>
             {
                 NatTypeStatusText(i18N.Translate("Starting NatTester"));
-                // Thread.Sleep(1000);
-                var (result, localEnd, publicEnd) = MainController.NTTController.Start();
+
+                var (result, localEnd, publicEnd) = MainController.NTTController.Start().Result;
 
                 if (!string.IsNullOrEmpty(publicEnd))
                 {
@@ -1583,12 +1590,5 @@ namespace Netch.Forms
         #endregion
 
         #endregion
-
-        private void createRouteTableModeToolStripMenuItem_Click(object sender, EventArgs e)
-        {
-            Hide();
-            new Route().ShowDialog();
-            Show();
-        }
     }
 }
\ No newline at end of file
diff --git a/Netch/Utils/DNS.cs b/Netch/Utils/DNS.cs
index 3f6d23cd..6ce62a38 100644
--- a/Netch/Utils/DNS.cs
+++ b/Netch/Utils/DNS.cs
@@ -75,7 +75,7 @@ namespace Netch.Utils
 
         public static IEnumerable<string> Split(string dns)
         {
-            return dns.Split(',').Where(ip => !string.IsNullOrWhiteSpace(ip)).Select(ip => ip.Trim());
+            return dns.SplitRemoveEmptyEntriesAndTrimEntries(',');
         }
 
         public static bool TrySplit(string value, out IEnumerable<string> result, ushort maxCount = 0)
diff --git a/Netch/Utils/ModeHelper.cs b/Netch/Utils/ModeHelper.cs
index a25ed97b..0a191e5f 100644
--- a/Netch/Utils/ModeHelper.cs
+++ b/Netch/Utils/ModeHelper.cs
@@ -81,7 +81,7 @@ namespace Netch.Utils
 
                     try
                     {
-                        var splited = text.Substring(1).Split(',').Select(s => s.Trim()).ToArray();
+                        var splited = text.Substring(1).SplitTrimEntries(',');
 
                         mode.Remark = splited[0];
 
diff --git a/Netch/Utils/PortHelper.cs b/Netch/Utils/PortHelper.cs
index 5e03d302..790ad8fe 100644
--- a/Netch/Utils/PortHelper.cs
+++ b/Netch/Utils/PortHelper.cs
@@ -28,7 +28,6 @@ namespace Netch.Utils
 
         private static void GetReservedPortRange(PortType portType, ref List<Range> targetList)
         {
-            var lines = new List<string>();
             var process = new Process
             {
                 StartInfo = new ProcessStartInfo
@@ -41,32 +40,20 @@ namespace Netch.Utils
                 }
             };
 
-            process.OutputDataReceived += (s, e) =>
-            {
-                if (e.Data != null)
-                    lines.Add(e.Data);
-            };
-
             process.Start();
-            process.BeginOutputReadLine();
-            process.WaitForExit();
+            var output = process.StandardOutput.ReadToEnd();
 
-            var splitLine = false;
-            foreach (var line in lines)
-                if (!splitLine)
-                {
-                    if (line.StartsWith("-"))
-                        splitLine = true;
-                }
-                else
-                {
-                    if (line == string.Empty)
-                        break;
+            foreach (var line in output.SplitRemoveEmptyEntriesAndTrimEntries('\n'))
+            {
+                var value = line.Trim().SplitRemoveEmptyEntries(' ');
+                if (value.Length != 2)
+                    continue;
 
-                    var value = line.Trim().Split(' ').Where(s => s != string.Empty).ToArray();
+                if (!ushort.TryParse(value[0], out var start) || !ushort.TryParse(value[1], out var end))
+                    continue;
 
-                    targetList.Add(new Range(ushort.Parse(value[0]), ushort.Parse(value[1])));
-                }
+                targetList.Add(new Range(start, end));
+            }
         }
 
         /// <summary>
diff --git a/Netch/Utils/StringExtension.cs b/Netch/Utils/StringExtension.cs
index e044b6c4..14c4bb45 100644
--- a/Netch/Utils/StringExtension.cs
+++ b/Netch/Utils/StringExtension.cs
@@ -1,4 +1,5 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using System.IO;
 using System.Linq;
 using System.Text;
@@ -63,5 +64,20 @@ namespace Netch.Utils
 
             return sb.ToString();
         }
+
+        public static string[] SplitRemoveEmptyEntriesAndTrimEntries(this string value, params char[] separator)
+        {
+            return value.Split(separator).Select(s => s.Trim()).Where(s => s != string.Empty).ToArray();
+        }
+
+        public static string[] SplitTrimEntries(this string value, params char[] separator)
+        {
+            return value.Split(separator).Select(s => s.Trim()).ToArray();
+        }
+
+        public static string[] SplitRemoveEmptyEntries(this string value, params char[] separator)
+        {
+            return value.Split(separator, StringSplitOptions.RemoveEmptyEntries);
+        }
     }
 }
\ No newline at end of file