Orbi RBK50 - using as a WiFi Extender to Sky Router

The version number does not matter. The RBR50 WAN (yellow) port can be connected to the Sky router with an ethernet cable.  (If it was not already) sync the Orbi satellite to the Orbi router.  The Orbi will create a WiFi network with probably more total coverage than the Sky router.

From this point, there are a host of possibilities.

• If the Orbi network covers the entire space, the Sky WiFi can be turned off to reduce WiFi interference.
• Having "two routers" creates a situation called a Double-NAT which can interfere with certain activities. (Internet search for Double-NAT.)  Thousands of users never encounter a problem with having two routers.  If you happen to be one of the few who are affected, then either the Sky needs to be put into "bridge" mode or the Orbi into Access Point (AP) mode.