My ISP installed the cable modem in my entertainment room. I am trying to have internet also in my STUDIO with an access point to broadcast a second WIFI from there to other parts of the house. (My property is big, with 2 floors, and concrete walls between since it is an old construction (50's) which decrease the performance of Wireless extenders, AP, etc (I tried everything, even Ethernet over power lines). So, now I think I am left with running a Shielded Outdoor rated CAT5e from that entertainment room through the wall, then outside the house running up to the second floor and again entering the house through a hole to the STUDIO. My question:
I have read that I have to ground any copper cable running outdoor before entering the house. So, the GROUND ROD for my MAIN electrical box is next to the house, in a wall NEAR to my entertainment room (where the cable modem is located), so, I guess I can install an ETHERNET SURGE protector with ground connection that side of the house (exterior installed) to the MAIN GROUND ROD. But what about when the CAT5e enters the house AGAIN in the second floor from outside through another hole in the Studio? Do I have to install another ethernet Surge protector and run again a LONG ground wire from there to the Rod downstairs which is around 120 feet distance far? Or, Is it ok to connect the cat5e cable to ground just in one point (the point leaving the house from entertainment room downstairs) which is near the MAIN Ground ROD of the HOUSE?
Thanks for advise.