are you in a house or a dorm or something? if the three walls in the way are all yours, my suggestion would be a long ethernet cord tacked along the baseboard. or conduit it across the top of the wall if you're feeling like a more polished approach.
hey, maybe try one of those powerline network adapter things. plug it into an outlet and it turns your power wiring into network cabling supposedly. report back the results if you do, i'm curious how well they actually work. i can just imagine the connection dropping every time you flip the lights or turn on the TV. i would think the product wouldn't have survived if that was the case though.
I could do that, if I found an Ethernet long enough for it.
I've used powerline adapters before. They actually work really well, and
most of the time electricity fluctuations don't impede them. The exception is if an extreme electricity guzzler of an appliance is turned on, but those are pretty rare.
The problem with them is that you can't use them in power strips unless you want their speed cut way down. Also they're slightly more expensive than wireless repeaters. Furthermore, only certain models allow a true network to be set up. Most of them only allow two powerline adapters: one to be plugged into the router and one to be plugged into the computer. There are a few models that allow one to broadcast to multiple powerline receivers, but you'd better make damn sure it says it does that on the box.
I used them for a few months and they worked great... until one day they inexplicably began to have difficulty connecting to each other. I still have no clue what happened there. I believe the wiring in my room might have been faulty, but I'm not sure.
In any case, getting a better wireless receiver is the least expensive solution by a fair bit and it would prevent this issue from coming up in the future. My roommate has a good one and he's getting signal just fine through three walls, so...
