Add Yahoo as a preferred source to see more of our stories on Google. Natalie Bodrova / iStock / Getty Images As its name suggests, a Wi-Fi extender rebroadcasts an existing Wi-Fi signal. It connects ...

Better coverage, but at what cost?

People can, sometimes, be oddly reluctant to invest in their home's Wi-Fi network. On one level, I get it -- other tech investments are often more exciting, or at least deliver more immediate results.

After testing some of the best Wi-Fi extenders on the market, my advice? Don’t buy one. It’s not that Wi-Fi extenders don’t work but that they don’t work well. There are many more-effective ways to ...