If you want to continue using the Apple-specific features in your Time Capsule (e.g. Time Machine backups), the best approach is the following:
- If your Time Capsule is connected directly to the modem, keep your existing Time Capsule set-up.
- Connect your first Plume Pod to one of the LAN ports on the Airport Time Capsule with the supplied Ethernet cable.
- Download the App. Setup your new Plume WiFi network in "Bridge" mode.
- Turn off the WiFi network on your Time Capsule.
This will allow you to keep using the Time Capsule for your Time Machine back ups.