Record a test against the application as per he provided instructions. 

Test Studio hangs and becomes unresponsive. The message logged in Event Viewer is the following: 

Application: Telerik.TestingFramework.Hosts.Manager.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: System.TimeoutException

Server stack trace: 
   at System.ServiceModel.Dispatcher.DuplexChannelBinder.Request(Message message, TimeSpan timeout)
   at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout)
   at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation)
   at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)
   at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(System.Runtime.Remoting.Messaging.IMessage, System.Runtime.Remoting.Messaging.IMessage)
   at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(System.Runtime.Remoting.Proxies.MessageData ByRef, Int32)
   at Telerik.TestingFramework.Hosts.Common.IWebSocketHostListener.OnClientResponseReceived(System.String, System.String)
   at Telerik.TestingFramework.Hosts.Manager.WebSocketHost.BroadcastToClients(System.Action`1<Telerik.TestingFramework.Hosts.Common.IWebSocketHostListener>)

Exception Info: System.Reflection.TargetInvocationException
   at System.RuntimeMethodHandle.InvokeMethod(System.Object, System.Object[], System.Signature, Boolean)
   at System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(System.Object, System.Object[], System.Object[])
   at System.Delegate.DynamicInvokeImpl(System.Object[])
   at Telerik.TestingFramework.Hosts.Manager.ThreadDispatcher.ExecuteTasks()
   at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
   at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
   at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object)
   at System.Threading.ThreadHelper.ThreadStart()