I have a laptop with a really shit wifi receiver in it. Router is downstairs at the front of the house.
My room is at the back and upstairs. Phone works a treat. Smart TV works a treat. Laptop can be iffy even with a plug in Netgear wifi booster in the room.
I rarely use my laptop but it would be nice to stream to the Smart TV via Chromecast instead of having to use a hard connection to it. Would something like one of these help?
And if so, what kind of tech spec thigns do I need to take into consideration?