The Internet is a necessity these days, and without it, we cannot do anything with our devices, including Windows PCs. When you see the WiFi Doesn’t Have Valid IP ...

I've recently written about using bash arrays and bash regular expressions, so here's a more useful example of using them to test IP addresses for validity. To belabor the obvious: IP addresses are 32 ...

Knowing how an IP address identifies a host on a network can be confusing. Before you begin calculating various addresses, you should know the fundamentals of IP addressing. Todd Lammle describes this ...

Your online presence is tied to your IP address. Many people wonder how to change their IP addresses to improve privacy and bypass online restrictions. An IP address is linked to your location, among ...

What is Event ID 4199? When this error occurs, your computer detects that another device on the network is using the IP address it wants to use. To prevent conflicts ...

In an upcoming blog I expect to write about configuring a home router, which requires logging on to it. This, in turn, requires knowing the IP address of the router. Non-techies typically don’t know ...

We just saw that the mask determines where the boundary between the network and host portions of the IP address lies. This boundary is important: If it is set too far to the right, there are lots of ...