Reset TCP/IP or Winsock -  Can't connect to the internet

Follow these steps to use the reset command to reset TCP/IP manually:

1. To open a command prompt, click Start and then click Run. Copy and paste (or type) the following command in the

   Open box and then press ENTER:

   cmd

    

2. At the command prompt, copy and paste (or type) the following command and then press ENTER:

   netsh int ip reset c:\resetlog.txt

    

   Note If you do not want to specify a directory path for the log file, use the following command:

   netsh int ip reset resetlog.txt

    

3. Reboot the computer.

When you run the reset command, it rewrites two registry keys that are used by TCP/IP. This has the same result as removing

and reinstalling the protocol. The reset command rewrites the following two registry keys:

SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\ 
SYSTEM\CurrentControlSet\Services\DHCP\Parameters\ 
				

Reset Winsock

To repair Winsock if you have Windows XP Service Pack 2 (SP2) or greater installed,

type netsh winsock reset at the command prompt, and then press ENTER.