>Hmm, I can't help you with the specifics of that method call.
>
>There is more background information at http://www.eggheadcafe.com/software/aspnet/31720251/remoteaddr-and-windows-vista.aspx

It seems this is something specific to the OS. All messages seem to target at a setting outside the .NET environment. This might explain why I started to get that since I moved to Windows 7. So, the OS seems to be related. I just do not know where is that setting exactly.