Check your Internet connection
          Check any cables and reboot any routers, modems, or other network
      devices you may be using.
        Allow Chrome to access the network in your firewall or antivirus
            settings.
          If it is already listed as a program allowed to access the network, try
        removing it from the list and adding it again.
        If you use a proxy server…
          Check your proxy settings or contact your network administrator to
        make sure the proxy server is working. If you don't believe you should
        be using a proxy server:
        Go to
            the Chrome menu >
            Settings
            >
            Show advanced settings…
            >
            Change proxy settings…
            >
            LAN Settings
            and deselect "Use a proxy server for your LAN".