Proxy Server Connection Problem with the Web Services API

You might have a proxy connection problem.

Problem

The sample application reports that it is unable to connect to the remote server. For example:

SimpleClient.exe https://<management-server>/sdk <user> <pass> 
Caught Exception : Name : WebException Message : Unable to connect to the remote server
Trace : at System.Net.HttpWebRequest.GetRequestStream() at System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke(String methodName, Object[] parameters) at VimApi.VimService.RetrieveServiceContent(ManagedObjectReference _this) ...
Exception disconnecting. 
Caught Exception : Name : NullReferenceException Message : Object reference not set to an instance of an object.
Trace: ...

Cause

Cannot connect to the Web service from Microsoft .NET client sample through the proxy server.

Solution

Try a different server on the same subnet as the client.