There is no connectivity, follow these steps:

1- Check the cable

2- Get network information Command line: net config redirector

3- Repair the connection

4- Check the priorities of connections and bounded protocols of the connections and providers in Network Connections window through Control Panel or Network and Sharing Center(you can access this window by type ncpa.cpl in Run too) -> Advanced -> Advanced Setting

5- Reset TCP/IP by Command line: netsh int ip reset c:/resetlog.txt

6- Scan system for test network component command line: Netsh diag gui

7- Make a new connection

Next step: TCP/IP Troubleshooting

1- Ipconfig /all /renew [connection name (wild-keys are acceptable)] /release [connection name (wild-keys are acceptable)] /flushdns /registerdns

2- Ping (check connection and probably firewall settings)

a. Note: not all website are set to reply to ping. Therefore, a request time out does not necessarily mean connectivity problems exist.

3- Tracert (recognize lost node)

4- Nbtstat –R (case sensitive) resolves NetBIOS names to IP addresses by empty and reloads name cache. Useful tool for legacy networks and workgroups

5- Netstat (recognize active connections, unwanted and waiting connections like Trojan horse attacks, shows all) netstat –a (shows all connections) –r (shows routing table)