Ensure WiFi is On and connected.
If your device is in Airplane mode, WiFi will not work.
In your browser (Chrome, Safari, Firefox, etc) try running a speed test from one of these sites:
For optimum Wifi performance,
- be close as possible to the Wireless Access Point,
- reduce the number of walls or barriers between the computer and the WiFi AP/router,
- the WiFi AP/router should be 4 or more feet off the floor to reduce barriers,
- you might need a new router or the router might need a software update, especially if it is several years old. To update your router, either contact the manufacturer or if your router is a rental from your Internet Service Provider (Comcast, CenturyLink, Wave, etc), you might be able to simply exchange it for a new or updated model.
A wired network connection is typically many, many, times faster than a wireless connection.