diff --git a/server/src/Hubs/JtagHub.cs b/server/src/Hubs/JtagHub.cs
index 0568585..7647043 100644
--- a/server/src/Hubs/JtagHub.cs
+++ b/server/src/Hubs/JtagHub.cs
@@ -1,4 +1,6 @@
 using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Cors;
+using Microsoft.AspNetCore.Mvc;
 using System.Security.Claims;
 using Microsoft.AspNetCore.SignalR;
 using DotNext;
@@ -23,6 +25,7 @@ public interface IJtagReceiver
 }
 
 [Authorize]
+[EnableCors("Users")]
 public class JtagHub : Hub<IJtagReceiver>, IJtagHub
 {
     private static NLog.Logger logger = NLog.LogManager.GetCurrentClassLogger();
diff --git a/server/src/Peripherals/JtagClient.cs b/server/src/Peripherals/JtagClient.cs
index d2a7f8e..c8cbea2 100644
--- a/server/src/Peripherals/JtagClient.cs
+++ b/server/src/Peripherals/JtagClient.cs
@@ -439,7 +439,7 @@ public class Jtag
         if (retPackLen != 4)
             return new(new Exception($"RecvDataPackage BodyData Length not Equal to 4: Total {retPackLen} bytes"));
 
-        return Convert.ToUInt32(Common.Number.BytesToUInt64(retPackOpts.Data).Value);
+        return Convert.ToUInt32(Common.Number.BytesToUInt32(retPackOpts.Data).Value);
     }
 
     async ValueTask<Result<bool>> WriteFIFO
diff --git a/server/src/UdpClientPool.cs b/server/src/UdpClientPool.cs
index 23e4501..b2cd059 100644
--- a/server/src/UdpClientPool.cs
+++ b/server/src/UdpClientPool.cs
@@ -336,7 +336,7 @@ public class UDPClientPool
                         $"Device {address} receive data is {retData.Length} bytes instead of 4 bytes"));
 
                 // Check result
-                var retCode = Convert.ToUInt32(Common.Number.BytesToUInt64(retData).Value);
+                var retCode = Convert.ToUInt32(Common.Number.BytesToUInt32(retData).Value);
                 if (Common.Number.BitsCheck(retCode, result, resultMask)) return true;
             }
             catch (Exception error)
diff --git a/src/components/equipments/MotherBoardCaps.vue b/src/components/equipments/MotherBoardCaps.vue
index 8437f09..9093ac6 100644
--- a/src/components/equipments/MotherBoardCaps.vue
+++ b/src/components/equipments/MotherBoardCaps.vue
@@ -22,7 +22,6 @@
     </div>
     <div class="divider"></div>
     <UploadCard
-      class="bg-base-200"
       :upload-event="eqps.jtagUploadBitstream"
       :download-event="eqps.jtagDownloadBitstream"
       :bitstream-file="eqps.jtagBitstream"
diff --git a/src/stores/equipments.ts b/src/stores/equipments.ts
index f98a302..1d3a19d 100644
--- a/src/stores/equipments.ts
+++ b/src/stores/equipments.ts
@@ -29,7 +29,7 @@ export const useEquipments = defineStore("equipments", () => {
     new Error("JtagClient Mutex Timeout!"),
   );
   const jtagHubConnection = new HubConnectionBuilder()
-    .withUrl("/hubs/JtagHub")
+    .withUrl("http://localhost:5000/hubs/JtagHub")
     .withAutomaticReconnect()
     .build();
   const jtagHubProxy =
@@ -43,7 +43,7 @@ export const useEquipments = defineStore("equipments", () => {
     },
   );
   onMounted(() => {
-    jtagHubConnection.start();
+
   });
 
   // Matrix Key
@@ -87,6 +87,7 @@ export const useEquipments = defineStore("equipments", () => {
   }
 
   async function jtagBoundaryScanSetOnOff(enable: boolean) {
+    jtagHubConnection.start();
     enableJtagBoundaryScan.value = enable;
     if (enable) {
       jtagHubProxy.startBoundaryScan(jtagBoundaryScanFreq.value);
diff --git a/src/views/Project/Index.vue b/src/views/Project/Index.vue
index 134c0d3..2e30907 100644
--- a/src/views/Project/Index.vue
+++ b/src/views/Project/Index.vue
@@ -306,8 +306,8 @@ async function checkAndInitializeBoard() {
 
 // 根据实验板信息更新equipment store
 function updateEquipmentFromBoard(board: Board) {
-  equipments.setAddr(board.ipAddr);
-  equipments.setPort(board.port);
+  equipments.boardAddr = board.ipAddr;
+  equipments.boardPort = board.port;
   
   console.log(`实验板信息已更新到equipment store:`, {
     address: board.ipAddr,