Coaxial to Ethernet adaptor for RBK50

> Coaxial to Ethernet adaptor for RBK50

   Too terse and meaningless.  What, exactly, would you like to do?

   General advice: You might have more success if you described
(clearly) the actual problem which you are trying to solve, rather than
asking how to implement some particular "solution" ("Coaxial to Ethernet
adaptor") which may have little or nothing to do with the actual problem
(whatever it might be).

You need a modem to convert any ooaxial ISP services to ethernet. Contact your ISP for help and information regarding there services and hardware requirements. 

Review the Orbi model installation guildes and user manuals on how to setup and install Orbi systems.