Wifi keeps dropping please help!

Hello there. I have been having a problem which is with my wifi. I believe i know what the problem is but I don't know how to fix it. Every 10-20 seconds, my wifi/adapter disconnects and then reconnects. What i have noticed is the following: I click on the wifi iron, then i see the other connections increasing and decreasing. By increasing and decreasing i mean that apparently, my adapter disconnects for a while then reconnects back. I think this is a problem for me as a gamer and a youtuber because I keep getting disconnected from multiplayer games. And for SURE i know it is not the router because I moved into a new house and i am still having the same problem. Also the other 5 devices in the house do NOT face the same problem. Thanks

Computer Information:
Hp Pavilion dm4 notebook
Windows 7 64-bit
Adapter: broadcom 4313GN 802.11b/g/n 1x1 Wi-Fi Adapter

Please help I have been in pain for 2 weeks with this terrible connection.