Steamcmd error

Microsoft Windows [Versione 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. Tutti i diritti riservati.

C:\Users\Andrea>cd C:\Steamcmd

C:\SteamCmd>steamcmd
ILocalize::AddFile() failed to load file "public/steambootstrapper_english.txt".

ILocalize::AddFile() failed to load file "public/steambootstrapper_italian.txt".

[  0%] Checking for available update...
SteamUpdater: Error: Download failed: http error 0
[  0%] Download Complete.
[----] Verifying installation...
[  0%] Downloading Update...
[  0%] Checking for available update...
SteamUpdater: Error: Download failed: http error 0
[  0%] Download Complete.
SteamUpdater: Error: Steam needs to be online to update.  Please confirm your ne
twork connection and try again.
[  0%] !!! Fatal Error: Steam needs to be online to update.  Please confirm your
 network connection and try again.

C:\SteamCmd>