Windows SBS2011 network path not found

Hello All,

I ahve a strange problem that I would be very grateful if someone could help me solve.

I am trying to connect a server (Windows 2008 Small Business Server) to a network path\\80.150.245.157\shared_folder (this is not the actual path, but it is the same format) and I get the error "system error 53. Network Path Not Found".

I would normally say that this is self-explanatory, but sadly the connection works perfectly from a Windows Client machine. I have tried Vista, Windows 7, XP, and they can all connect, but I simply cannot get the Windows 2008 Server machine to connect.

I have also tried from other server machines, and it doesn't work either.

Can anyone help point me in the right direction?

Thanks

Nick