Wireless on laptop stuck on one specific router???

Recently (about 1 week ago), my wireless internet started acting weird. For the past 3 months, I was able to connect one of the many internet connections around my house. (ex: for some parts of the room, I have better reception from my neighbor's wireless than my house's wireless.)

So a week ago and up to this day, my wireless connections on my laptop would only connect to my neighbor's wireless server, and not mine. My laptop can detect my wireless server, but when I try to connect to it, my laptop shows that there isn't any reception (even though my laptop detects full reception from my wireless router.) I have another laptop, and I can switch from wireless connections.

How can I fix this problem? Basically, my laptop can detect all the wireless internet connections around my house, but I can only connect to my neighbor's connection. No matter what I do, the wireless connection on my laptop would only work if I use my neighbor's wireless connection. What should I do?

Thanks!!!

 

Delete all the wireless connections and let them connect again. Also, you can make priority and tell it to never connect to your neighbors (this is illegal), and to only connect to yours.