One of these will definitely do the trick

A spotty Wi-Fi connection frustrates your web browsing experience. Other internet-dependent activities such as streaming music, app updates, online gameplay, etc. also become less enjoyable.

If you find yourself having to reconnect frequently because your Chromebook keeps disconnecting from Wi-Fi, try the troubleshooting steps below.

Proximity plays a significant role in the strength, speed, and behavior of Wi-Fi connections for any device. The closer your device is to a router, the stronger the Wi-Fi connection. You may experience occasional connection drops if your Chromebook is outside of the router’s optimal connection range.