错误：ConnectFailure（连接被拒绝）

我有xamarin.forms应用程序，我试图从PC连接本地主机到Iphone模拟器在Mac中，我使用IP地址连接，

private string Uri = "http://192.168.0.16:62271/";//Windows Ip address:localhost port number private string GetDishesUrl = "api/DishDetails/GetDishDetails?id=5"; try{ var httpClient = new HttpClient(); httpClient.BaseAddress = new Uri(Uri); var response = await httpClient.GetAsync(new Uri(Uri + GetDishesUrl)); var stringAsync = await response.Content.ReadAsStringAsync(); if (response.IsSuccessStatusCode) { var responseJson = stringAsync; return JsonConvert.DeserializeObject<List<DishDetails>>(responseJson); } } catch(Exception ex) { } 

在这里我得到以下exception：

 {System.Net.Http.HttpRequestException: An error occurred while sending the request ---> System.Net.WebException: Error: ConnectFailure (Connection refused) ---> System.Net.Sockets.SocketException: Connection refused at System.Net.Sockets.Socket.Connect (System.Net.EndPoint remoteEP) [0x000b0] in /Library/Frameworks/Xamarin.iOS.framework/Versions/11.2.1.0/src/mono/mcs/class/System/System.Net.Sockets/Socket.cs:879 at System.Net.WebConnection.Connect (System.Net.HttpWebRequest request) [0x00191] in /Library/Frameworks/Xamarin.iOS.framework/Versions/11.2.1.0/src/mono/mcs/class/System/System.Net/WebConnection.cs:194 --- End of inner exception stack trace --- at System.Net.HttpWebRequest.EndGetResponse (System.IAsyncResult asyncResult) [0x00052] in /Library/Frameworks/Xamarin.iOS.framework/Versions/11.2.1.0/src/mono/mcs/class/System/System.Net/HttpWebRequest.cs:1029 at System.Threading.Tasks.TaskFactory`1[TResult].FromAsyncCoreLogic (System.IAsyncResult iar, System.Func`2[T,TResult] endFunction, System.Action`1[T] endAction, System.Threading.Tasks.Task`1[TResult] promise, System.Boolean requiresSynchronization) [0x0000f] in /Library/Frameworks/Xamarin.iOS.framework/Versions/11.2.1.0/src/mono/mcs/class/referencesource/mscorlib/system/threading/Tasks/FutureFactory.cs:550 --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x0000c] in /Library/Frameworks/Xamarin.iOS.framework/Versions/11.2.1.0/src/mono/mcs/class/referencesource/mscorlib/system/runtime/exceptionservices/exceptionservicescommon.cs:151 at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) [0x00037] in /Library/Frameworks/Xamarin.iOS.framework/Versions/11.2.1.0/src/mono/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:187 at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) [0x00028] in /Library/Frameworks/Xamarin.iOS.framework/Versions/11.2.1.0/src/mono/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:156 at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) [0x00008] in /Library/Frameworks/Xamarin.iOS.framework/Versions/11.2.1.0/src/mono/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:128 at System.Runtime.CompilerServices.ConfiguredTaskAwaitable`1+ConfiguredTaskAwaiter[TResult].GetResult () [0x00000] in /Library/Frameworks/Xamarin.iOS.framework/Versions/11.2.1.0/src/mono/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:535 at System.Net.Http.HttpClientHandler+<SendAsync>d__63.MoveNext () [0x00406] in /Library/Frameworks/Xamarin.iOS.framework/Versions/11.2.1.0/src/mono/mcs/class/System.Net.Http/System.Net.Http/HttpClientHandler.cs:388 --- End of inner exception stack trace --- at System.Net.Http.HttpClientHandler+<SendAsync>d__63.MoveNext () [0x0049f] in /Library/Frameworks/Xamarin.iOS.framework/Versions/11.2.1.0/src/mono/mcs/class/System.Net.Http/System.Net.Http/HttpClientHandler.cs:392 --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x0000c] in /Library/Frameworks/Xamarin.iOS.framework/Versions/11.2.1.0/src/mono/mcs/class/referencesource/mscorlib/system/runtime/exceptionservices/exceptionservicescommon.cs:151 at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) [0x00037] in /Library/Frameworks/Xamarin.iOS.framework/Versions/11.2.1.0/src/mono/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:187 at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) [0x00028] in /Library/Frameworks/Xamarin.iOS.framework/Versions/11.2.1.0/src/mono/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:156 at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) [0x00008] in /Library/Frameworks/Xamarin.iOS.framework/Versions/11.2.1.0/src/mono/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:128 at System.Runtime.CompilerServices.ConfiguredTaskAwaitable`1+ConfiguredTaskAwaiter[TResult].GetResult () [0x00000] in /Library/Frameworks/Xamarin.iOS.framework/Versions/11.2.1.0/src/mono/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:535 at System.Net.Http.HttpClient+<SendAsyncWorker>d__48.MoveNext () [0x00080] in /Library/Frameworks/Xamarin.iOS.framework/Versions/11.2.1.0/src/mono/mcs/class/System.Net.Http/System.Net.Http/HttpClient.cs:276 --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x0000c] in /Library/Frameworks/Xamarin.iOS.framework/Versions/11.2.1.0/src/mono/mcs/class/referencesource/mscorlib/system/runtime/exceptionservices/exceptionservicescommon.cs:151 at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) [0x00037] in /Library/Frameworks/Xamarin.iOS.framework/Versions/11.2.1.0/src/mono/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:187 at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) [0x00028] in /Library/Frameworks/Xamarin.iOS.framework/Versions/11.2.1.0/src/mono/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:156 at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) [0x00008] in /Library/Frameworks/Xamarin.iOS.framework/Versions/11.2.1.0/src/mono/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:128 at System.Runtime.CompilerServices.TaskAwaiter`1[TResult].GetResult () [0x00000] in /Library/Frameworks/Xamarin.iOS.framework/Versions/11.2.1.0/src/mono/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:357 at MyApp.Services.DishDetailsService+<GetAsync>d__5.MoveNext () [0x00084] in G:\SourceTree\Projects\SourceCode\MyApp\MyApp\MyApp\Services\DishDetailsService.cs:45 }` 

而在Windows中运行networking它是按预期工作。当试图连接到MAC给错误。我跟随不同的方法从互联网，但没有得到了工作。

编辑：我禁用防火墙和连接mac和pc在同一个Wifi然后响应为空，exception也是空的。