A:AnswerYou don't have to use an ethernet port, just plug it in. You will want to plug it in to a socket as close to your modem as possible at first; once connected, you can move it to were you want it.
A:AnswerI now get a very strong wifi signal in my shed/bar/bbq. It's about 30' from the house. I'm have a 1/2 acre and at the farthest get good signal.
A:Answerwhen I set mine up a few months ago, everything connected automatically once it was on the network. More than tripled my data rate throughout the house too.
A:AnswerMy belief is you won't be able to do it. I have mind in the living room. The router is in the basement. I have full signal on the first floor, which is where the extender is. But on the second floor which is another 10 foot higher an additional 15 ft away. The signal there is now three bars. Without the extender I had 1 bar and sometimes two. So the extender did improve my signal up to approximately 30 feet. If you look at the installation diagram, it shows the extender must be able receive good signal. And it will extend and enhance the signal over area with poor coverage. I don't believe you will fair well without using several extenders to reach your shed.
A:AnswerIt works fine about 50ft away but you would want it to be as close to the router as possible, mine is about 30 feet from it and it works alright, I’m sure in other areas with better signal it would work up to 100ft but try to stay under 100ft.