Your device is not connected to Wi-Fi. Ensure that it is before trying to link your device to formide.
The network your device is connected to does not have access to the Internet. Ensure that it has before trying to link your device to formide.
Before continuing, ensure that your computer is connected to the Internet.
If this is a custom device, such as a Raspberry Pi, it must first be whitelisted. You can request this via Email.