I'm not sure if I have posted this in the right category but its probably near enough.
I have a craft room in the garage and have a TV there with a firestick. I was getting a signal, although not good, about a month ago but now it won't connect, saying the signal is out of range.
There is a BT black box next to the TV to pick up a wireless signal but to no avail.
The garage is about 20 meters from the house.
Any suggestions that aren't too costly?