Are range extenders shit by default? I bought a Cisco one for $30 (it was a refurb) and it ended up being hot garbage. Setup software demanded the router have at least "3 bars" of connection, which in real life translated to about 20 feet from the router. The distance from the extender to the PS4 was still enormous, and both the extender and the router itself ended up having identical signal strength on the PS4.
The PS4 wouldn't even connect to the range "extender" at all. What a piece of junk.
I'm at a loss of what to do. The PS4 is straight up on the other side of the house (not too big a house, but a good amount of feet). No way in hell I can run a giant cable across the house for a wired connection. The room with the router in it is in a separate electrical circuit from the rest of the house, making the wall plugs a non-option. A good router is $150+, which is WAY too expensive. The only other option I'm looking at is getting another ~$40 router to use as an access point, but that doesn't sound like a typical solution.
For reference, in my current setup I'm getting extremely slow download speeds on my PS4 and the wifi connection is dropped every few seconds. I have to download games overnight and streaming/multiplayer is simply not possible.