It will make the signal weaker?!?!

I understand a double NAT or some other issue like that. But plugging in a router into the Ethernet port in the room will make the signal weaker. Am I missing something here?

Currently the Ethernet port isn’t working, and he’s been trying to get it fixed for a couple of weeks now. So we have to get that straighten first before I go plugging in a router. I will be hiding the SSID to lesson the suspension. Anything else I should look out for?

KOT