diff --git a/Assets/Scripts/Apis/PfHttpClientHandler.cs b/Assets/Scripts/Apis/PfHttpClientHandler.cs
index 08f59b5c..75293660 100644
--- a/Assets/Scripts/Apis/PfHttpClientHandler.cs
+++ b/Assets/Scripts/Apis/PfHttpClientHandler.cs
@@ -16,23 +16,41 @@ namespace Assets.Scripts.Apis
         protected async override Task<HttpResponseMessage> SendAsync(
         HttpRequestMessage request, CancellationToken cancellationToken)
         {
-            var response = await base.SendAsync(request, cancellationToken).ConfigureAwait(false);
-            //{"result":false,"errMsg":"已在其他设备登录","code":401}
-            var result = await response.Content.ReadAsStringAsync().ConfigureAwait(false);
-            if (request.RequestUri.ToString().Contains(App.Host) && result.Contains(@"{""result"":false,"))
+            try
             {
-                var json = ParseJson<JsonResult<object>>(result);
-                if (json.code == 401)
+                var response = await base.SendAsync(request, cancellationToken).ConfigureAwait(false);
+                //{"result":false,"errMsg":"已在其他设备登录","code":401}
+                var result = await response.Content.ReadAsStringAsync().ConfigureAwait(false);
+                if (request.RequestUri.ToString().Contains(App.Host) && result.Contains(@"{""result"":false,"))
                 {
-                    App.is401 = json.errMsg;
-                    UnityMainThreadDispatcher.Instance().Enqueue(LoadLogin(json.errMsg));
+                    var json = ParseJson<JsonResult<object>>(result);
+                    if (json.code == 401)
+                    {
+                        App.is401 = json.errMsg;
+                        UnityMainThreadDispatcher.Instance().Enqueue(LoadLogin(json.errMsg));
+                    }
                 }
+                else
+                {
+                    App.is401 = null;
+                }
+                if (response.StatusCode != System.Net.HttpStatusCode.OK)
+                {
+                    response.Content = new StringContent(new JsonResult<object> { result = false, errMsg = "Please check if the network connection is normal.", data = null }.ToString());
+                }
+                return response;
             }
-            else
+            catch (Exception e) 
             {
-                App.is401 = null;
+                Debug.Log(e);
+                HttpResponseMessage httpResponse = new HttpResponseMessage
+                {
+                    StatusCode = System.Net.HttpStatusCode.BadRequest,
+                    Content = new StringContent(new JsonResult<object> { result = false, errMsg = "Please check if the network connection is normal.", data = null }.ToString())
+                };
+                return httpResponse;
             }
-            return response;
+            
         }
         private T ParseJson<T>(string result)
         {