My laptop will not connect to my home router?

I have recently purchased a new laptop, due to my old laptop breaking. My old laptop had no problem connecting to my home router and could connect fine. Although, my new laptop (an acer aspire 5000) cannot find my router (which is a Belkin). My laptop can find nearly all of my streets routers besides mine. Although, on one lucky occasion it has managed to find it and since then it has disconnected and has been unable to find it since. Does anyone have any insight on whether to fix this? If so, please leave you're advise. It would be most helpful.