diff --git a/EonaCat.Network.Tester/Program.cs b/EonaCat.Network.Tester/Program.cs
index 7b2454c..88cd9bb 100644
--- a/EonaCat.Network.Tester/Program.cs
+++ b/EonaCat.Network.Tester/Program.cs
@@ -1,7 +1,9 @@
 // This file is part of the EonaCat project(s) which is released under the Apache License.
 // See the LICENSE file or go to https://EonaCat.com/License for full license details.
 
+using System.Net.Security;
 using System.Reflection;
+using System.Security.Authentication;
 using System.Security.Cryptography;
 using System.Security.Cryptography.X509Certificates;
 using EonaCat.WebSockets;
@@ -58,7 +60,6 @@ internal class Program
     {
         var serverUri = "wss://localhost:8443";
         var clientUri = "wss://localhost:8443/Welcome";
-        var clientName = "TestClient";
         var certificatePath = Path.Combine(Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location), "localhost.pfx");
         var certificatePassword = "";
         var requiredPassword = "";
@@ -67,11 +68,22 @@ internal class Program
         StartServer(serverUri, certificatePath, certificatePassword, requiredPassword);
 
         // Start the client in the main thread
+        await StartClientAsync(clientUri, certificatePath, certificatePassword).ConfigureAwait(false);
+        Console.WriteLine("Connected to the server.");
+    }
+
+    private static async Task StartClientAsync(string clientUri, string certificatePath, string certificatePassword)
+    {
         var configuration = new AsyncWebSocketClientConfiguration();
+        configuration.SslTargetHost = "localhost";
+        configuration.SslEncryptionPolicy = EncryptionPolicy.RequireEncryption;
+        configuration.SslCheckCertificateRevocation = false;
+        configuration.SslPolicyErrorsBypassed = true;
+        configuration.SslEnabledProtocols = SslProtocols.Tls12 | SslProtocols.Tls13;
+        configuration.SslClientCertificates = new X509CertificateCollection { new X509Certificate2(certificatePath, certificatePassword) };
+
         _client = new AsyncWebSocketClient(new Uri(clientUri), OnServerTextReceived, OnServerBinaryReceived, OnServerConnected, OnServerDisconnected, OnServerFragmentationStreamOpened, OnServerFragmentationStreamOpened, OnServerFragmentationStreamClosed, configuration);
         await _client.ConnectAsync().ConfigureAwait(false);
-        //(sender, e) => Console.WriteLine($"Error: {sender}\n{e}");
-        Console.WriteLine("Connected to the server.");
     }
 
     private static Task OnServerFragmentationStreamClosed(AsyncWebSocketClient arg1, byte[] arg2, int arg3, int arg4)
@@ -156,12 +168,21 @@ internal class Program
     private static void StartServer(string serverUri, string certificatePath, string certificatePassword,
         string requiredPassword)
     {
+        // split the server uri to get the port
+        var uri = new Uri(serverUri);
+        var port = uri.Port;
+
         var test = new AsyncWebSocketServerModuleCatalog();
-        //var module = new AsyncWebSocketServerModule
-        //test.RegisterModule();
-        //_server = new AsyncWebSocketServer(serverUri);
-        //_server.SSL.Certificate = new X509Certificate2(certificatePath, certificatePassword);
-        //_server.AddEndpoint<WelcomeEndpoint>("/Welcome");
-        //_server.Start();
+        test.RegisterModule(new TestModule());
+        var configuration = new AsyncWebSocketServerConfiguration();
+        configuration.SslEnabled = true;
+        configuration.SslEncryptionPolicy = EncryptionPolicy.RequireEncryption;
+        configuration.SslCheckCertificateRevocation = false;
+        configuration.SslPolicyErrorsBypassed = true;
+        configuration.SslClientCertificateRequired = true;
+        configuration.SslEnabledProtocols = SslProtocols.Tls12 | SslProtocols.Tls13;
+        configuration.SslServerCertificate = new X509Certificate2(certificatePath, certificatePassword);
+        _server = new AsyncWebSocketServer(port, test, configuration);
+        _server.Listen();
     }
 }
\ No newline at end of file
diff --git a/EonaCat.Network.Tester/TestModule.cs b/EonaCat.Network.Tester/TestModule.cs
new file mode 100644
index 0000000..13d372b
--- /dev/null
+++ b/EonaCat.Network.Tester/TestModule.cs
@@ -0,0 +1,16 @@
+// This file is part of the EonaCat project(s) which is released under the Apache License.
+// See the LICENSE file or go to https://EonaCat.com/License for full license details.
+
+using EonaCat.WebSockets;
+
+internal class TestModule : AsyncWebSocketServerModule
+{
+    public TestModule()
+        : base("/Welcome")
+    {
+    }
+    public override async Task OnSessionTextReceived(AsyncWebSocketSession session, string text)
+    {
+        await session.SendTextAsync(text);
+    }
+}
\ No newline at end of file