diff --git a/FastGithub.DomainResolve/DomainResolver.cs b/FastGithub.DomainResolve/DomainResolver.cs
index b376939..931c44b 100644
--- a/FastGithub.DomainResolve/DomainResolver.cs
+++ b/FastGithub.DomainResolve/DomainResolver.cs
@@ -2,10 +2,8 @@
 using System;
 using System.Collections.Concurrent;
 using System.Collections.Generic;
-using System.Diagnostics;
 using System.Linq;
 using System.Net;
-using System.Net.Sockets;
 using System.Runtime.CompilerServices;
 using System.Threading;
 using System.Threading.Tasks;
@@ -18,7 +16,7 @@ namespace FastGithub.DomainResolve
     sealed class DomainResolver : IDomainResolver
     {
         private readonly DnsClient dnsClient;
-        private readonly ConcurrentDictionary<DnsEndPoint, IPAddressTestResult> dnsEndPointAddressTestResult = new();
+        private readonly ConcurrentDictionary<DnsEndPoint, IPAddressElapsedCollection> dnsEndPointAddressElapseds = new();
 
         /// <summary>
         /// 域名解析器
@@ -35,72 +33,9 @@ namespace FastGithub.DomainResolve
         /// <param name="domain">域名</param>
         public void Prefetch(string domain)
         {
-            var endPoint = new DnsEndPoint(domain, 443);
-            this.dnsEndPointAddressTestResult.TryAdd(endPoint, IPAddressTestResult.Empty);
-        }
-
-        /// <summary>
-        /// 对所有节点进行测速
-        /// </summary>
-        /// <param name="cancellationToken"></param>
-        /// <returns></returns>
-        public async Task TestAllEndPointsAsync(CancellationToken cancellationToken)
-        {
-            foreach (var keyValue in this.dnsEndPointAddressTestResult)
-            {
-                if (keyValue.Value.IsEmpty || keyValue.Value.IsExpired)
-                {
-                    var dnsEndPoint = keyValue.Key;
-                    var addresses = new List<IPAddress>();
-                    await foreach (var adddress in this.dnsClient.ResolveAsync(dnsEndPoint.Host, cancellationToken))
-                    {
-                        addresses.Add(adddress);
-                    }
-
-                    var addressTestResult = IPAddressTestResult.Empty;
-                    if (addresses.Count == 1)
-                    {
-                        var addressElapseds = new[] { new IPAddressElapsed(addresses[0], TimeSpan.Zero) };
-                        addressTestResult = new IPAddressTestResult(addressElapseds);
-                    }
-                    else if (addresses.Count > 1)
-                    {
-                        var tasks = addresses.Select(item => GetIPAddressElapsedAsync(item, dnsEndPoint.Port, cancellationToken));
-                        var addressElapseds = await Task.WhenAll(tasks);
-                        addressTestResult = new IPAddressTestResult(addressElapseds);
-                    }
-                    this.dnsEndPointAddressTestResult[dnsEndPoint] = addressTestResult;
-                }
-            }
-        }
-
-        /// <summary>
-        /// 获取连接耗时
-        /// </summary>
-        /// <param name="address"></param>
-        /// <param name="port"></param>
-        /// <param name="cancellationToken"></param>
-        /// <returns></returns>
-        private static async Task<IPAddressElapsed> GetIPAddressElapsedAsync(IPAddress address, int port, CancellationToken cancellationToken)
-        {
-            var stopWatch = Stopwatch.StartNew();
-            try
-            {
-                using var timeoutTokenSource = new CancellationTokenSource(TimeSpan.FromSeconds(10d));
-                using var linkedTokenSource = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken, timeoutTokenSource.Token);
-                using var socket = new Socket(SocketType.Stream, ProtocolType.Tcp);
-                await socket.ConnectAsync(address, port, linkedTokenSource.Token);
-                return new IPAddressElapsed(address, stopWatch.Elapsed);
-            }
-            catch (Exception)
-            {
-                cancellationToken.ThrowIfCancellationRequested();
-                return new IPAddressElapsed(address, TimeSpan.MaxValue);
-            }
-            finally
-            {
-                stopWatch.Stop();
-            }
+            const int HTTPS_PORT = 443;
+            var dnsEndPoint = new DnsEndPoint(domain, HTTPS_PORT);
+            this.dnsEndPointAddressElapseds.TryAdd(dnsEndPoint, IPAddressElapsedCollection.Empty);
         }
 
         /// <summary>
@@ -126,21 +61,55 @@ namespace FastGithub.DomainResolve
         /// <returns></returns>
         public async IAsyncEnumerable<IPAddress> ResolveAllAsync(DnsEndPoint endPoint, [EnumeratorCancellation] CancellationToken cancellationToken)
         {
-            if (this.dnsEndPointAddressTestResult.TryGetValue(endPoint, out var speedTestResult) && speedTestResult.IsEmpty == false)
+            if (this.dnsEndPointAddressElapseds.TryGetValue(endPoint, out var addressElapseds) && addressElapseds.IsEmpty == false)
             {
-                foreach (var addressElapsed in speedTestResult.AddressElapseds)
+                foreach (var addressElapsed in addressElapseds)
                 {
                     yield return addressElapsed.Adddress;
                 }
             }
             else
             {
-                this.dnsEndPointAddressTestResult.TryAdd(endPoint, IPAddressTestResult.Empty);
+                this.dnsEndPointAddressElapseds.TryAdd(endPoint, IPAddressElapsedCollection.Empty);
                 await foreach (var adddress in this.dnsClient.ResolveAsync(endPoint.Host, cancellationToken))
                 {
                     yield return adddress;
                 }
             }
         }
+
+        /// <summary>
+        /// 对所有节点进行测速
+        /// </summary>
+        /// <param name="cancellationToken"></param>
+        /// <returns></returns>
+        public async Task TestAllEndPointsAsync(CancellationToken cancellationToken)
+        {
+            foreach (var keyValue in this.dnsEndPointAddressElapseds)
+            {
+                if (keyValue.Value.IsEmpty || keyValue.Value.IsExpired)
+                {
+                    var dnsEndPoint = keyValue.Key;
+                    var addresses = new List<IPAddress>();
+                    await foreach (var adddress in this.dnsClient.ResolveAsync(dnsEndPoint.Host, cancellationToken))
+                    {
+                        addresses.Add(adddress);
+                    }
+
+                    var addressElapseds = IPAddressElapsedCollection.Empty;
+                    if (addresses.Count == 1)
+                    {
+                        var addressElapsed = new IPAddressElapsed(addresses[0], TimeSpan.Zero);
+                        addressElapseds = new IPAddressElapsedCollection(addressElapsed);
+                    }
+                    else if (addresses.Count > 1)
+                    {
+                        var tasks = addresses.Select(address => IPAddressElapsed.ParseAsync(address, dnsEndPoint.Port, cancellationToken));
+                        addressElapseds = new IPAddressElapsedCollection(await Task.WhenAll(tasks));
+                    }
+                    this.dnsEndPointAddressElapseds[dnsEndPoint] = addressElapseds;
+                }
+            }
+        }
     }
 }
diff --git a/FastGithub.DomainResolve/IDomainResolver.cs b/FastGithub.DomainResolve/IDomainResolver.cs
index 45037db..45877db 100644
--- a/FastGithub.DomainResolve/IDomainResolver.cs
+++ b/FastGithub.DomainResolve/IDomainResolver.cs
@@ -16,13 +16,6 @@ namespace FastGithub.DomainResolve
         /// <param name="domain">域名</param>
         void Prefetch(string domain);
 
-        /// <summary>
-        /// 对所有节点进行测速
-        /// </summary>
-        /// <param name="cancellationToken"></param>
-        /// <returns></returns>
-        Task TestAllEndPointsAsync(CancellationToken cancellationToken);
-
         /// <summary>
         /// 解析ip
         /// </summary>
@@ -38,5 +31,12 @@ namespace FastGithub.DomainResolve
         /// <param name="cancellationToken"></param>
         /// <returns></returns>
         IAsyncEnumerable<IPAddress> ResolveAllAsync(DnsEndPoint endPoint, CancellationToken cancellationToken = default);
+
+        /// <summary>
+        /// 对所有节点进行测速
+        /// </summary>
+        /// <param name="cancellationToken"></param>
+        /// <returns></returns>
+        Task TestAllEndPointsAsync(CancellationToken cancellationToken = default);
     }
 }
\ No newline at end of file
diff --git a/FastGithub.DomainResolve/IPAddressElapsed.cs b/FastGithub.DomainResolve/IPAddressElapsed.cs
index e5d21ba..f5e6f38 100644
--- a/FastGithub.DomainResolve/IPAddressElapsed.cs
+++ b/FastGithub.DomainResolve/IPAddressElapsed.cs
@@ -1,27 +1,32 @@
 using System;
 using System.Diagnostics;
 using System.Net;
+using System.Net.Sockets;
+using System.Threading;
+using System.Threading.Tasks;
 
 namespace FastGithub.DomainResolve
 {
     /// <summary>
-    /// IP连接耗时
+    /// IP延时
     /// </summary>
     [DebuggerDisplay("Adddress={Adddress} Elapsed={Elapsed}")]
     struct IPAddressElapsed
     {
+        private static readonly TimeSpan connectTimeout = TimeSpan.FromSeconds(10d);
+
         /// <summary>
         /// 获取IP地址
         /// </summary>
         public IPAddress Adddress { get; }
 
         /// <summary>
-        /// 获取连接耗时
+        /// 获取延时
         /// </summary>
         public TimeSpan Elapsed { get; }
 
         /// <summary>
-        /// IP连接耗时
+        /// IP延时
         /// </summary>
         /// <param name="adddress"></param>
         /// <param name="elapsed"></param>
@@ -30,5 +35,34 @@ namespace FastGithub.DomainResolve
             this.Adddress = adddress;
             this.Elapsed = elapsed;
         }
+
+        /// <summary>
+        /// 获取连接耗时
+        /// </summary>
+        /// <param name="address"></param>
+        /// <param name="port"></param>
+        /// <param name="cancellationToken"></param>
+        /// <returns></returns>
+        public static async Task<IPAddressElapsed> ParseAsync(IPAddress address, int port, CancellationToken cancellationToken)
+        {
+            var stopWatch = Stopwatch.StartNew();
+            try
+            {
+                using var timeoutTokenSource = new CancellationTokenSource(connectTimeout);
+                using var linkedTokenSource = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken, timeoutTokenSource.Token);
+                using var socket = new Socket(SocketType.Stream, ProtocolType.Tcp);
+                await socket.ConnectAsync(address, port, linkedTokenSource.Token);
+                return new IPAddressElapsed(address, stopWatch.Elapsed);
+            }
+            catch (Exception)
+            {
+                cancellationToken.ThrowIfCancellationRequested();
+                return new IPAddressElapsed(address, TimeSpan.MaxValue);
+            }
+            finally
+            {
+                stopWatch.Stop();
+            }
+        }
     }
 }
diff --git a/FastGithub.DomainResolve/IPAddressElapsedCollection.cs b/FastGithub.DomainResolve/IPAddressElapsedCollection.cs
new file mode 100644
index 0000000..bef3dfc
--- /dev/null
+++ b/FastGithub.DomainResolve/IPAddressElapsedCollection.cs
@@ -0,0 +1,80 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Linq;
+
+namespace FastGithub.DomainResolve
+{
+    /// <summary>
+    /// IP延时集合
+    /// </summary>
+    [DebuggerDisplay("Count={Count} IsExpired={IsExpired}")]
+    sealed class IPAddressElapsedCollection : IEnumerable<IPAddressElapsed>
+    {
+        private readonly List<IPAddressElapsed> addressElapseds;
+        private readonly int creationTickCount = Environment.TickCount;
+        private static readonly int maxLifeTime = 60 * 1000;
+
+        /// <summary>
+        /// 获取空的
+        /// </summary>
+        public static IPAddressElapsedCollection Empty = new();
+
+        /// <summary>
+        /// 获取数量
+        /// </summary>
+        public int Count => this.addressElapseds.Count;
+
+        /// <summary>
+        /// 获取是否为空
+        /// </summary>
+        public bool IsEmpty => this.addressElapseds.Count == 0;
+
+        /// <summary>
+        /// 获取是否已过期
+        /// </summary>
+        public bool IsExpired => Environment.TickCount - this.creationTickCount > maxLifeTime;
+
+        /// <summary>
+        /// IP延时集合
+        /// </summary>
+        private IPAddressElapsedCollection()
+        {
+            this.addressElapseds = new List<IPAddressElapsed>();
+            this.creationTickCount = 0;
+        }
+
+        /// <summary>
+        /// IP延时集合
+        /// </summary>
+        /// <param name="addressElapsed"></param>
+        public IPAddressElapsedCollection(IPAddressElapsed addressElapsed)
+        {
+            this.addressElapseds = new List<IPAddressElapsed> { addressElapsed };
+        }
+
+        /// <summary>
+        /// IP延时集合
+        /// </summary>
+        /// <param name="addressElapseds"></param>
+        public IPAddressElapsedCollection(IEnumerable<IPAddressElapsed> addressElapseds)
+        {
+            this.addressElapseds = addressElapseds.OrderBy(item => item.Elapsed).ToList();
+        }
+
+        /// <summary>
+        /// 获取迭代器
+        /// </summary>
+        /// <returns></returns>
+        public IEnumerator<IPAddressElapsed> GetEnumerator()
+        {
+            return this.addressElapseds.GetEnumerator();
+        }
+
+        IEnumerator IEnumerable.GetEnumerator()
+        {
+            return this.addressElapseds.GetEnumerator();
+        }
+    }
+}
diff --git a/FastGithub.DomainResolve/IPAddressTestResult.cs b/FastGithub.DomainResolve/IPAddressTestResult.cs
deleted file mode 100644
index 38f0c86..0000000
--- a/FastGithub.DomainResolve/IPAddressTestResult.cs
+++ /dev/null
@@ -1,44 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-
-namespace FastGithub.DomainResolve
-{
-    /// <summary>
-    /// IP测速结果
-    /// </summary>
-    sealed class IPAddressTestResult
-    {
-        private static readonly TimeSpan lifeTime = TimeSpan.FromMinutes(2d);
-        private readonly int creationTickCount = Environment.TickCount;
-
-        /// <summary>
-        /// 获取空的
-        /// </summary>
-        public static IPAddressTestResult Empty = new(Array.Empty<IPAddressElapsed>());
-
-        /// <summary>
-        /// 获取是否为空
-        /// </summary>
-        public bool IsEmpty => this.AddressElapseds.Length == 0;
-
-        /// <summary>
-        /// 获取是否已过期
-        /// </summary>
-        public bool IsExpired => lifeTime < TimeSpan.FromMilliseconds(Environment.TickCount - this.creationTickCount);
-
-        /// <summary>
-        /// 获取测速结果
-        /// </summary>
-        public IPAddressElapsed[] AddressElapseds { get; }
-
-        /// <summary>
-        /// 测速结果
-        /// </summary>
-        /// <param name="result"></param>
-        public IPAddressTestResult(IEnumerable<IPAddressElapsed> addressElapseds)
-        {
-            this.AddressElapseds = addressElapseds.OrderBy(item => item.Elapsed).ToArray();
-        }
-    }
-}
diff --git a/FastGithub.PacketIntercept/DnsInterceptHostedService.cs b/FastGithub.PacketIntercept/DnsInterceptHostedService.cs
index 1ac3b12..f4c5c83 100644
--- a/FastGithub.PacketIntercept/DnsInterceptHostedService.cs
+++ b/FastGithub.PacketIntercept/DnsInterceptHostedService.cs
@@ -1,4 +1,5 @@
-using Microsoft.Extensions.Hosting;
+using FastGithub.WinDiverts;
+using Microsoft.Extensions.Hosting;
 using Microsoft.Extensions.Logging;
 using System;
 using System.Collections.Generic;
@@ -45,6 +46,10 @@ namespace FastGithub.PacketIntercept
         /// <returns></returns>
         public override async Task StartAsync(CancellationToken cancellationToken)
         {
+            // 首次加载驱动往往有异常，所以要提前加载
+            var handle = WinDivert.WinDivertOpen("true", WinDivertLayer.Network, 0, WinDivertOpenFlags.None);
+            WinDivert.WinDivertClose(handle);
+
             foreach (var solver in this.conflictSolvers)
             {
                 await solver.SolveAsync(cancellationToken);