How can I connect my Roku without a router?

Episode 1254 (2:17:20)

Gloria from Los Angeles, CA
Roku Stick

Gloria has a Roku Stick and she's been told she needs a router to use it. Leo says that yes, she'll need wireless internet access. If her router doesn't have Wi-Fi built-in, then her choices are to either get a regular Roku and plug it into her modem via an ethernet cable, or buy a router which will handle wireless traffic from the Roku stick. It'll also allow her to connect to her laptop wirelessly. Leo says that if she calls her cable provider, they'll replace her modem with a Wi-Fi modem/router. They'll set it all up.