Unable to connect to the remote server from Windows service

When I try to connect to remote server from a .Net windows ser开发者_如何学Pythonvice installed on the local machine, it is working correctly, but when install the windows service in the same server where the web application is installed, it gives this error:

"Unable to connect to the remote server"

There are many possible reasons for this.
But this is a guessing game with multiple combinations of choices and paths since you did not describe the context well (which Windows, editions and versions, etc.).

One of the possible reasons is "Loopback check" security feature in Windows: http://support.microsoft.com/kb/896861