Reddit mentions of Monoprice Ethernet Over Power Adapter (Pair) - 85MBPS

Something like this might help. I'm not recommending that particular model. That was just the top Google result.

You can do it yourself if you want.

Or try out ethernet over power

If you want a professional that's not your ISP, you can call an electrician to do it for you. A handyman that has experience running cables would also be able to do it.

10yr exp plus computer tech here. If you're willing to drop money on proper hardware, I'm willing to donate my time to come out and help you out. If the guest house is further than 50-100 feet away from the main house though, I'd probably recommending either sending out cable, or depending on how the power is configured you could use an Ethernet over Power configuration.

I've had really good luck with these: http://www.amazon.com/Ethernet-over-POWER-Adapter-Pair/dp/B004C4XWN2

Like I mentioned in a previous post, Wireless power is mandated by the FCC. Pretty much whatever router you get, you're still going to be limited by that range in a residential setting.

Ethernet over power my friend
http://www.amazon.com/Ethernet-over-POWER-Adapter-Pair/dp/B004C4XWN2

I had a friend ask me this same question not too long ago.

There are several options-

Possibly Free- Update the firmware on the router you do have to a custom firmware and set the Transmit power higher.

$70 - Wireless repeater

$15-20 Swapping existing antennas with High-Gain Antennas. I don't know how helpful this would be.

~$70 - Ethernet over power

could try ethernet over power. works for me

Here is a decent pair of them: http://www.amazon.com/gp/aw/d/B004C4XWN2

If you can afford it, the better quality ones usually start around 90 or 100 bucks. But the 60 dollar range is pretty decent.

Problems can arise with your house's power lines. If the breaker lies between the two adapters, the signal won't go through. However this usually isn't a big deal. And if it is? Just return them.

If you want better than WiFi connectivity without the wiring hassle look into Ethernet over power devices, there are cheaper versions than my example.

It might end up being about the same cost as wiring it up. Getting it prefab you will spend $25 - $40 depending on where you buy it from. To make your wire without any prior supplies you are going to spend about $15 in tools, $2 - $4 for a bag of RJ-45s, and about $2 - $5 for Ethernet cable; total of $$20 - $25.

If you choose to build the cable yourself, it is always better to buy to much than too little.

Here's a nifty little product: http://www.amazon.com/Ethernet-over-POWER-Adapter-Pair/dp/B004C4XWN2

> The Ethernet over Power adapters offer users a wide range of networking solutions over the powerline. It uses the existing power line as data transmission media terminal. The new high-speed generation of home plug adapters allows you the tranfering of data, video streaming, heavy-duty files such as photo and videos all transmitted over the power line without interference. Simply plug this adapter into an existing electrical wall socket and connect to the PC's Ethernet port to enjoy an internet connection anywhere in the home.

Trying to skirt around PCI compliance is not something you wanna get caught doing. I assume your talking about this and not POE. I've seen you've updated your comment. I can not speak on part of the regulators but I assume it has something to do with having wires being intrinsically safe. They are not so much worried about things exploding but concerned about having high voltage exposed to people and devices it's not suppose to be.

You can use something link this to get a direct wired connection without actually running any new wires. If you go that route be sure to kind of shop around. I literally just clicked the first thing that I could find on Google but when I got mine from Fry's I think I only paid like $40 and they work just fine.

maybe something like this http://www.amazon.com/Ethernet-over-POWER-Adapter-Pair/dp/B004C4XWN2

I use something similar to this, much better speeds than wireless and I didn't have to run any new wiring: http://www.amazon.com/Ethernet-over-POWER-Adapter-Pair/dp/B004C4XWN2

Perhaps you could explain your project a bit more? What's the intent?

Would this work? Ethernet through electrical outlets