I have a wireless network running off of my D-Link Dir 655. Ideally I'd like to get through 6 sheet rock walls, a stucco exterior wall and back through another stucco exterior wall to get to the cottage in the back. I'm guessing it's in the neighborhood of 80 - 100 feet. Also, I'm right next to an apartment building and there are a lot of competing wireless networks. I do have a wired connection out there, so I guess I could get some kind of a repeater - and that may be the best solution - but I would rather boost the signal for the whole property.
Currently I can't even see my network, let alone connect to it.
A directional outside antenna would be a little problematic, because the house is two story's and the cottage is behind to house.