How to tell your computer you’ve changed the WiFi password

For Mac users, open system settings, choose "Network" and then choose "Wi-Fi." From the list of known networks, choose your Wi-Fi network and then click the three dots and choose "Forget This Network." — Jim Rossman/TNS

This week I received an email from a reader: “I'm housesitting at a friend's house and have had successful internet connection for several months.

"We got a new Roku stick because the old one stopped working. We also changed the internet (WiFi) password with the internet provider at the same time.