FileUpload Access \\server\\folder\\file.txt to the path denied.

Hi all,
 I am currently testing a web form to upload documents to a specific folder on a server in the network following this sample http://msdn.microsoft.com/en-us/library/aa479405.aspx
 When I run the ASP.Net application using the FileUpload to copy a file located in my local workstation and saving it in my local C:\ drive everything works fine.
 But when I run the same application and try to FileUpload the same file to a location in a server in another machine I get the following error message:
 “Access \\server\\folder\\file.txt to the path denied.”
The app and the server are in different machines.
 FileUpload1.SaveAs("\\server\\shares\\folder\\" & _
                   FileUpload1.FileName)
 
My guess is that i ...