If you're trying to connect your Chrome OS device to a WiFi network while being used in Kiosk Mode, you can manage this directly from your Google Admin remotely. This is useful in the event that your moving your displays for digital signage or have set up a new wireless router that needs to be set up with your Chrome devices. You can click here for Google's support article on how to set up WiFi networks for managed devices or follow the steps below.
You can add Wi-Fi networks to Chrome OS devices at any time. We recommend using the Google Admin console to create Wi-Fi profiles and then apply them to devices during the enrollment process. Any updates you make later to the Wi-Fi profiles are automatically pushed to devices.
On a computer other than the Chrome OS device you're setting up, please do the following:
Log into your Google Admin Console.
Go to Devices.
Click Networks > Wi-Fi.
(Optional) On the left, select the organizational unit where you want the Wi-Fi network to apply.
Note: By default, an organization inherits the settings of its parent in the organization tree. However, you can override the inherited setting by explicitly changing the setting for the child organization. The new setting applies to users in that organization, and any of its children.
Click Add Wi-Fi.
Enter the details for your organization’s Wi-Fi network and set it to Automatically connect.
Under Apply network, select by device.
Confirm that the Wi-Fi configuration options are correct and click Add.
Tip: In particular, pay attention to the SSID and passphrase, both are case-sensitive.
Click Save Changes.
For more information about adding a Wi-Fi network, see Add a Wi-Fi configuration.