A typical beginner’s mistake is to connect to a WiFi network and then launch an application such as an email client. Many public WiFi networks require you to open a web page first, either to show advertising or to have you accept the terms of service. Occasionally, you have to log on with a password. If Windows doesn’t automatically launch the default browser after you connect to the WiFi network, you have to manually open any web page. The WiFi router should then redirect your browser to the logon page.