diff --git a/AIParkingApplication/AIParkingApplicationForm.cs b/AIParkingApplication/AIParkingApplicationForm.cs
index b807aae..956191c 100644
--- a/AIParkingApplication/AIParkingApplicationForm.cs
+++ b/AIParkingApplication/AIParkingApplicationForm.cs
@@ -20,7 +20,7 @@ namespace AIParkingApplication
         private EngineApiController engineApiController;
         private string doorAccessControlDeviceIP;
 
-        public AIParkingApplicationForm(ApiController apiController, Config configOnWeb)
+        public AIParkingApplicationForm(ApiController apiController, string serverIPAddress, Config configOnWeb)
         {
             InitializeComponent();
             this.apiController = apiController;
diff --git a/AIParkingApplication/ApiController.cs b/AIParkingApplication/ApiController.cs
index 469caca..0a02a20 100644
--- a/AIParkingApplication/ApiController.cs
+++ b/AIParkingApplication/ApiController.cs
@@ -13,11 +13,12 @@ namespace AIParkingApplication
         private HttpClient httpClient;
         private bool isHttpClientDisposabled;
 
-        public ApiController(string baseAddress, int numberOfRetry = 5)
+        public ApiController(string serverIPAddress, int numberOfRetry = 5)
         {
+
             httpClient = new HttpClient
             {
-                BaseAddress = new Uri(baseAddress),
+                BaseAddress = new Uri($"http://{serverIPAddress}"),
                 Timeout = TimeSpan.FromSeconds(5)
             };
             isHttpClientDisposabled = false;
diff --git a/AIParkingApplication/LoginForm.Designer.cs b/AIParkingApplication/LoginForm.Designer.cs
index 6e77344..ac4bf11 100644
--- a/AIParkingApplication/LoginForm.Designer.cs
+++ b/AIParkingApplication/LoginForm.Designer.cs
@@ -92,7 +92,7 @@
             this.txtServerAddress.Name = "txtServerAddress";
             this.txtServerAddress.Size = new System.Drawing.Size(227, 20);
             this.txtServerAddress.TabIndex = 1;
-            this.txtServerAddress.Text = "http://localhost:80/";
+            this.txtServerAddress.Text = "192.168.1.122:80";
             // 
             // lblServerAddress
             // 
diff --git a/AIParkingApplication/LoginForm.cs b/AIParkingApplication/LoginForm.cs
index 85a376f..2ae95d3 100644
--- a/AIParkingApplication/LoginForm.cs
+++ b/AIParkingApplication/LoginForm.cs
@@ -23,25 +23,32 @@ namespace AIParkingApplication
 
         private async void Login()
         {
-            if (string.IsNullOrEmpty(txtServerAddress.Text))
+            btnLogin.Enabled = false;
+            string serverUrl = txtServerAddress.Text;
+            if (string.IsNullOrEmpty(serverUrl))
             {
-                lblLoginStatus.Text = "Địa chỉ server không được để trống!";
+                lblLoginStatus.Text = "Địa chỉ server không được để trống! \r\n ví dụ: 192.168.1.2:80";
+                btnLogin.Enabled = true;
                 return;
             }
 
-            if (!Util.IsUrlValid(txtServerAddress.Text))
+            Util.ParseHostString(serverUrl, out string ipAddress, out int port);
+
+            if (!Util.IsValidIPAddress(ipAddress))
             {
-                lblLoginStatus.Text = "Địa chỉ server không đúng định dạng: \r\n http://localhost:80 hoặc http://192.168.1.2:80";
+                lblLoginStatus.Text = "Địa chỉ server không đúng định dạng: \r\n ví dụ: 192.168.1.122:80";
+                btnLogin.Enabled = true;
                 return;
             }
 
             try
             {
-                apiController = new ApiController(txtServerAddress.Text);
+                apiController = new ApiController(serverUrl);
             }
             catch (Exception ex)
             {
                 MessageBox.Show($"Cấu máy chủ lỗi - Kiểm tra lại tên máy chủ, kết nối máy chủ! \r\n {ex.Message}", "Lỗi khởi tạo API!", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                btnLogin.Enabled = true;
                 return;
             }
 
@@ -51,12 +58,14 @@ namespace AIParkingApplication
             if (string.IsNullOrEmpty(username) || string.IsNullOrEmpty(password))
             {
                 lblLoginStatus.Text = "Tên tài khoản hoặc mật khẩu không được để trống!";
+                btnLogin.Enabled = true;
                 return;
             }
 
             var loginResult = await apiController.Login(new LoginModel { Username = username, Password = password });
             if (loginResult.Exception != null)
             {
+                btnLogin.Enabled = true;
                 var execeptioMessage = loginResult.Exception.Message;
                 if (execeptioMessage.Contains("Error converting value"))
                 {
@@ -74,11 +83,13 @@ namespace AIParkingApplication
 
             if (loginResult.IsLoginSuccess)
             {
-                new AIParkingApplicationForm(apiController, loginResult.LoginData).Show();
+                new AIParkingApplicationForm(apiController, ipAddress, loginResult.LoginData).Show();
                 Hide();
             }
         }
 
+       
+
         private void btnLogin_Click(object sender, EventArgs e)
         {
             Login();
diff --git a/AIParkingApplication/Util.cs b/AIParkingApplication/Util.cs
index 7b1e78d..6886a31 100644
--- a/AIParkingApplication/Util.cs
+++ b/AIParkingApplication/Util.cs
@@ -154,12 +154,25 @@ namespace AIParkingApplication
             return isValidIPAddress;
         }
 
-        public static bool IsUrlValid(string url)
+        public static void ParseHostString(string hostString, out string hostName, out int port)
         {
+            if (!hostString.Contains(":"))
+            {
+                hostName = hostString;
+                port = 80;
+                return;
+            }
 
-            string pattern = @"^(http|https|ftp|)\://|[a-zA-Z0-9\-\.]+\.[a-zA-Z](:[a-zA-Z0-9]*)?/?([a-zA-Z0-9\-\._\?\,\'/\\\+&%\$#\=~])*[^\.\,\)\(\s]$";
-            Regex reg = new Regex(pattern, RegexOptions.Compiled | RegexOptions.IgnoreCase);
-            return reg.IsMatch(url);
+            string[] hostParts = hostString.Split(':');
+            if (hostParts.Length != 2)
+            {
+                hostName = string.Empty;
+                port = 0;
+                return;
+            }
+
+            hostName = hostParts[0];
+            int.TryParse(hostParts[1], out port);
         }
     }