Internet bridge from house to shop.

Is your shop metal!?

If so you have a Faraday cage of sorts. Not a lot can help with that.

Can you run a hard wire to your shop?


There are cell phone repeaters, but pricy.

Wifi repeaters too, not as pricy.

Good luck to you
I ran cable and electrical wiring in CVC pipe under ground from my garage to my shed. It works great for me. Not the answer your looking for I guess. But… it's reliable. Lol :)