Last week I wrote about PingPlotter and my quest to diagnose AT&T U-verse’s flaky service. As I explained, it looks like AT&T default DNS servers are behaving badly and I’m waiting to hear back from ...

In the previous column on hacking PingPlotter I discussed how you can use the tool’s Web interface and the curl utility to add targets to be tracked, for example ...

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.