18. Tweak, Monitor, and Extend Your Wi-Fi Network With a Firmware Upgrade (or Aluminum Foil)
Extend your router's signal, throttle your bandwidth, review usage charts, and more with an open-source router-firmware upgrade. The free DD-WRT
firmware each offer advanced features for managing your wireless network, including bandwidth monitors, quality-of-service graphs, and even router overclocking to extend your signal.
Want to make your Wi-Fi router's signal reach the attic and the basement the low-tech way? Some sites say they've achieved gains by fashioning a foil "windsurfer" parabola and attaching it to the router antenna