re: Extend WiFi on Farm acreage?

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Here's a video of a guy who did just this.

Get Internet in your barn

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Yeah you could try a powerline adapter, I think the tech has improved in recent years and speeds are getting better. Results vary depending on your electric setup. If the buildings have their own meters it probably won't work. They work best if you put them on the same circuit. Long runs like on this property here it might not work at all.

Real-world speed tests:

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I have 4 TPLink av2000 adapters.

In my fairly new house (200x), I get (measured with iperf3):

On the same breaker: 500mbps

On the same leg, different breaker: 250mbps

Different leg/breaker: 90mbps.

House to detached garage (longer distance, same leg, different breaker): 50mbps

Now, you may think, "Well, that's not too bad!" But there are problems.

If our dryer is running, speed drops to (not by, to) 10% of normal. This is a serious problem for powerline, and it's not just dryers or even things actually plugged in directly. Powerline is basically wifi but using the power wires as an antenna. But those wires are unshielded, and untwisted. This leaves them VERY vulnerable to interference, which ends up requiring lots of resent packets which drags down speeds, but worse, increases latency significantly.

If too many simultaneous connections are made, even at low speeds such as running a torrent client, bufferbloat strikes and latency can run upwards of 3 full seconds.

Speeds you get are typically sum-of-whole-network speeds. This doesn't matter if you're the only user, but I've found if you have multiple users even on totally different adapters, you burn through bandwidth VERY quickly.

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