I have had an MSI U210 notebook for a few months now, and randomly my wireless connection will fail, even though two other laptops in my house have completely fine connection. Please help! I cant deal with this constantly failing connection. Thanks.

Have you confirmed this by trying to use your MSI RIGHT NEXT to the router? Degradation in signal can lead to connection interruptions. If your laptop functions like the other two when you get close to the wireless router (the device that puts out the wireless signal) then that means there is just too much stuff in between the laptop and router when you try to use it, therefore causing signal interruptions. The radio waves put out by wireless routers are typically not able to go through many solid objects.
If this isn't then problem, then try updating your drivers for the wireless adapter in your notebook. Go to MSI's site, go to their support section, and download the wireless adapter drivers for your model. Hopefully that clears it up.
Good luck.