Best Mesh Wi-Fi Routers… Explained Inside a Dollhouse By Wall Street Journal on December 5, 2018 in Economy The following video is brought to you courtesy of the Wall Street Journal YouTube Channel. Click the video below to watch it now. No Wi-Fi in the attic? Or basement? A mesh router can help. WSJ’s Joanna Stern and her miniature friends explain how the new Wi-Fi router systems work—and which is the best one to buy.