If a computer is unable to configure a valid Internet Protocol address, it can't connect to a network. If you plug a laptop directly into a modem with an Ethernet cable and receive a "No Valid IP ...

Every device connected to the internet has an IP address. It works a bit like a digital home address, helping websites, apps, ...

I have a user who's machine is not pingable on our network, using computer hostname or associated IP. However, in troubleshooting this, I see that the IP the machine actually has does not resolve to ...

Internet Protocol addresses provide basic information about your computer. If someone captures your IP address, they can sometimes identify your general location and computer operating system. An IP ...

Your computer's IP address — which stands for "Internet Protocol" — is a string of numbers, separated by dots, that identifies a computer or device on the internet or its local network. Your computer ...

David Nield is a technology journalist from Manchester in the U.K. who has been writing about gadgets and apps for more than 20 years. He has a bachelor's degree in English Literature from Durham ...