poor or no internet coverage

I've moved to Donegal and am having difficulties picking up the internet from my neighbour/landlord. The have a dlink router and have added an extension and my house is pretty close to theirs but although my iphone can connect the laptop cannot. I thought it was an issue with the laptop but I can pick connect to wireless at work.

My phone coverage is also poor where I live - but I'm loath to leave as the view is beautiful.

Can I do anything at all?