C# 从其他应用程序使用SignalR hub

我有两个使用windows身份验证的asp.net应用程序。
应用程序A:具有信号集线器

[HubName("docHub")]
public class DocumentHub : Hub
{
    private static IHubContext hubContext = GlobalHost.ConnectionManager.GetHubContext<DocumentHub>();

    public void ReloadMenu()
    {
        Clients.All.ReloadMenu();
    }

    public void Reload()
    {
        Clients.All.Reload();
    }
}

我的问题是关于

hubConn.Start（）.Wait（）行，我得到
未授权
异常。stacktrace:

Exception information: 
    Exception type: HttpClientException 
    Exception message: StatusCode: 401, ReasonPhrase: 'Unauthorized', Version: 1.1, Content: System.Net.Http.StreamContent, Headers:
{
  Cache-Control: private
  WWW-Authenticate: Negotiate
  WWW-Authenticate: NTLM
  X-UA-Compatible: IE=Edge
  Date: Sat, 15 Oct 2016 07:16:27 GMT
  Content-Length: 6286
  Content-Type: text/html; charset=utf-8
}
   at Microsoft.AspNet.SignalR.Client.Http.DefaultHttpClient.<>c__DisplayClass5_0.<Get>b__1(HttpResponseMessage responseMessage)
   at Microsoft.AspNet.SignalR.TaskAsyncHelper.TaskRunners`2.<>c__DisplayClass3_0.<RunTask>b__0(Task`1 t)



Request information: 
    Request URL: http://kms.local/WebDav/filename.xlsx 
    Request path: /WebDav/filename.xlsx 
    User host address: 172.00.00.00 
    User: DOMAIN\username 
    Is authenticated: True 
    Authentication Type: Negotiate 
    Thread account name: NT AUTHORITY\NETWORK SERVICE 

Thread information: 
    Thread ID: 61 
    Thread account name: NT AUTHORITY\NETWORK SERVICE 
    Is impersonating: False 
    Stack trace:    at Microsoft.AspNet.SignalR.Client.Http.DefaultHttpClient.<>c__DisplayClass5_0.<Get>b__1(HttpResponseMessage responseMessage)
   at Microsoft.AspNet.SignalR.TaskAsyncHelper.TaskRunners`2.<>c__DisplayClass3_0.<RunTask>b__0(Task`1 t)

异常信息：
异常类型：HttpClientException
异常消息：状态代码：401，原因短语：“未经授权”，版本：1.1，内容：System.Net.Http.StreamContent，标题：
{
缓存控制：专用
WWW：协商
WWW:NTLM
X-UA-兼容：IE=Edge
日期：2016年10月15日星期六格林尼治标准时间07:16:27
内容长度：6286
内容类型：text/html；字符集=utf-8
}
在Microsoft.AspNet.signar.Client.Http.DefaultHttpClient.c__显示Class5_0.b__1（HttpResponseMessage responseMessage）
在Microsoft.AspNet.signal.TaskAsyncHelper.TaskRunners`2.c\uuu显示Class3\u0.b\u0（任务`1t）
请求信息：
请求URL:http://kms.local/WebDav/filename.xlsx 
请求路径：/WebDav/filename.xlsx
用户主机地址：172.00.00.00
用户：域\用户名
已验证：True
身份验证类型：协商
线程帐户名称：NT授权\网络服务
线程信息：
线程ID:61
线程帐户名称：NT授权\网络服务
是模仿：假
堆栈跟踪：位于Microsoft.AspNet.signar.Client.Http.DefaultHttpClient.c__显示类5_0.b__1（HttpResponseMessage responseMessage）
在Microsoft.AspNet.signal.TaskAsyncHelper.TaskRunners`2.c\uuu显示Class3\u0.b\u0（任务`1t）

由于两个应用程序都有windows身份验证方法，我不知道如何授权应用程序b的请求

Exception information: 
    Exception type: HttpClientException 
    Exception message: StatusCode: 401, ReasonPhrase: 'Unauthorized', Version: 1.1, Content: System.Net.Http.StreamContent, Headers:
{
  Cache-Control: private
  WWW-Authenticate: Negotiate
  WWW-Authenticate: NTLM
  X-UA-Compatible: IE=Edge
  Date: Sat, 15 Oct 2016 07:16:27 GMT
  Content-Length: 6286
  Content-Type: text/html; charset=utf-8
}
   at Microsoft.AspNet.SignalR.Client.Http.DefaultHttpClient.<>c__DisplayClass5_0.<Get>b__1(HttpResponseMessage responseMessage)
   at Microsoft.AspNet.SignalR.TaskAsyncHelper.TaskRunners`2.<>c__DisplayClass3_0.<RunTask>b__0(Task`1 t)



Request information: 
    Request URL: http://kms.local/WebDav/filename.xlsx 
    Request path: /WebDav/filename.xlsx 
    User host address: 172.00.00.00 
    User: DOMAIN\username 
    Is authenticated: True 
    Authentication Type: Negotiate 
    Thread account name: NT AUTHORITY\NETWORK SERVICE 

Thread information: 
    Thread ID: 61 
    Thread account name: NT AUTHORITY\NETWORK SERVICE 
    Is impersonating: False 
    Stack trace:    at Microsoft.AspNet.SignalR.Client.Http.DefaultHttpClient.<>c__DisplayClass5_0.<Get>b__1(HttpResponseMessage responseMessage)
   at Microsoft.AspNet.SignalR.TaskAsyncHelper.TaskRunners`2.<>c__DisplayClass3_0.<RunTask>b__0(Task`1 t)