I'm completely new to home wifi.
I have an ancient Vigor 2700VG router and it was fine for my notebook and phone staying in the same room.
Now i want to extend the wifi range to whole apartment and bought a tp-link TL-WA901ND. I set it up as a repeater (range extender) per instructions and it's even worse with it than without it.
The whole area is 100 m² (1076 ft²), but with a lot of walls all over.
I want to throw my older router away. So what equipment should I buy?