When my internet starts crawling, I don't just restart my router and hope for the best. I grab these three network diagnostic tools and systematically work through my network to find the real culprit.

The de facto standard for port scanning always has been the venerable Nmap program. The command-line tool is indeed very powerful, but I've only ever seen it work with Linux, and every time I use it, ...

I am testing Angry IP Scanner & I realized that I can't ping certain PCs on my network from other PCs on my network. I haven't noticed any other problems however. I can map drives to shares on other ...