Hi  @crinkles 

If your hardware controller is showing offline on the Omada Cloud platform, you can follow these troubleshooting steps:
    1. Check the LED status on the hardware controller, especially the cloud LED.
    2. Verify that your router is functioning properly. Connect a computer to the hardware controller's second LAN port and ping the external IP (e.g., ping 8.8.8.8) to confirm if the ping result is reachable.
    3. Verify if you can access your controller using its local IP address from the LAN network. If you can, go to Global View > Settings > Cloud Access and re-enable cloud access.
    4. Reboot your hardware controller. Try replacing the cable between the hardware controller and your router or switch with another short, high-quality cable.
    5. (Optional) Reset your hardware controller. It is recommended to back up the current settings so you can manually restore them after the reset. To back up settings, go to Global View > Settings > Maintenance > Backup & Restore.

What happens if I factory reset the controller? Will all APs etc. also reset?

>>>The Internet will still working, but those advanced features need controller to maintain will lose function, such as portal authentication. Please firstly try login via OC200's IP address locally and back up the config first.