How can I get my Chromebook to automatically rejoin my home network?
While you are logged onto the Chromebook and with it attached to your home network, click on the network icon in the lower right corner of the screen, in the Chromebook’s status area.
A pop-up window will open. Click on the name of your home network.
Another window will appear, showing all the available networks. Click on your home network.
The Setting window will open for your network. Enable the setting to “Automatically connect to this network” by sliding the button to the right.