Home > Networking > Reset Internet Protocol (TCP/IP)

Reset Internet Protocol (TCP/IP)


One of the components of the Internet connection on your computer is a built-in set of instructions called TCP/IP. TCP/IP can sometimes become damaged or corrupted. If you cannot connect to the Internet and you have tried all other methods to resolve the problem, TCP/IP might be causing it.

Because TCP/IP is a core component of Windows, you cannot remove it. However, you can reset TCP/IP to its original state by using the NetShell utility (netsh).

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

  1. Open a command prompt, click Start then click Run. Type cmd into the box and press ENTER.
  2. At the command prompt, type the following command and press ENTER:
    netsh int ip reset reset.log
  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 registry key:

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