title: /signalr/hubs 404 (Not Found) in DNN 7.3.4
body: <p>I am developing a website using DNN 7.3.4. I am signalr in this.
  I have executed this script for <code>AUM_DoNotRewriteRegEx</code>.</p>
  
  <pre><code>IF NOT EXISTS (SELECT * FROM dnn_hostsettings WHERE SettingName = 'AUM_DoNotRewriteRegEx' )
  
        insert into dnn_hostsettings
          (SettingName
          , SettingValue
          , SettingIsSecure 
          , CreatedByUserId
          , CreatedOnDate
          , LastModifiedByUserId
          , LastModifiedOnDate
          )
          values(
          'AUM_DoNotRewriteRegEx'
          ,'/DesktopModules/|/Providers|/LinkClick\.aspx|/SignalR'
          , 0
          , -1
          , GETDATE()
          , -1
          , GETDATE()
          )
  
      GO
  
      IF EXISTS (SELECT * FROM dnn_hostsettings WHERE SettingName = 'AUM_DoNotRewriteRegEx' and SettingValue not like '%/signalr%' )
  
      update dnn_hostsettings
          set settingValue = (select settingValue + '|/signalr' from dnn_hostsettings where settingname = 'AUM_DoNotRewriteRegEx')
      where settingname = 'AUM_DoNotRewriteRegEx'
  
      GO
  </code></pre>
  
  <p>And in my page</p>
  
  <pre><code>&lt;script type="text/javascript" src='&lt;%=ResolveClientUrl("~/signalr/hubs") %&gt;'&gt;&lt;/script&gt;
  
  var objHub = $.connection.myHub;
  $.connection.hub.start().done(function () {
      //....
  })
  </code></pre>
  
  <p>But it's not working every time it's showing this.
  <a href="https://i.stack.imgur.com/MFfw5.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/MFfw5.png" alt="enter image description here"></a></p>