All computers connected to networks have different IP addresses. This is how networks can verify where particular messages should go. In order to connect different computers, you need to access one ...
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 ...
I often have to find the IP address of a machine I'm working on (or need to work on). Sometimes, I need to unblock an IP address of a machine on my network, so the machine can reach a network share ...