1. 1Check Server status on Overview. If your location is degraded, try another.
2. 2Make sure your plan is active and the device is within your device limit.
3. 3Update the app to the latest version.
4. 4Remove the connection and import your subscription link again.
5. 5Restart the device and try a different network, for example mobile data instead of Wi-Fi.

Still stuck? Open a ticket with your device, app version, location and the time it failed.