PSP Mysteriously Crashes While Online???

When I play Socom 2 (its really the only game I play online) online I will play 1 match usually and then when the second match comes, my psp will just freeze and it will just turn off. I hate it when my psp does this and would like to fix the problem. Questions:

-Is there somthing wrong with my psp?

-Is there any way to fix it?

Thanks for your answers.

i had the same problem with syphon filter logan's shadow... i cleaned the umd and the umd reader and it never happened again...

I think I know the problem for some of you guys. After playing online awhile(if you have an old PSP) your hands get tired and they begin to slope, make sure you are not hitting the wlan switch because mine turns completly off after turning wlan switch off. Its kinda dumb but i have the same problem, also you have hackers who boot the whole room if they loose and it will shut your PSP off if they boot you so watch out for invincible people.SkullSpliter12

When I first got my PSP, I kept turning it off on accident. xD But this is not the case.