How to keep your neighbors from hijacking your Wi-Fi

A number of issues can produce intermittently slow Internet access, and most of them don’t involve foul play. You could have bad cables, a bad modem or router, or simply outdated firmware on either of these devices. The problem may be with your ISP, and therefore completely out of your hands. For more on these possibilities, see my past column on obscenely slow Internet connections. Also, check out Nick Mediati’s primer on how to test your home Internet connection speed. Check some help from this article on PCWorld.com