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 Reset-TCPIP.