So what I wanna do is take one of my old routers and configure it to my current network to use for JUST ethernet. So in short I want that new router to pick up the signal of my main one and then use an ethernet cable on the second one to plug into my device for a wired connection. I dont exactly know how to do this and I cant find very many guides on it that will work for me because I have limited access to the main router. (the reason of this is I'm a child and my father manages the main router with restricted access to the login page; so no device except his can log into the main router) We already do have a second one configured for just ethernet so that's how I know it's possible and we have a spare router that had decent speeds just sitting there so I thought it'd be a good addition to my device to have ethernet (it's a raspberry pi with only an ethernet connection avaliable so that's the point of this) If anyone could help me in this endeavor it would be greatly appreciated, many thanks.