PS3 Connection Problem Help?

I am really pissed when ever I play my Uncharted 2 game Online, my player will stop and won't move, then the game stops for me when a box up saying Connection Error. I think it's gotta do something with my PS3 slow connection. The green and orange lights flicker, when it's a fast connection they stay still. But there flickering and then sometimes I get a message that says "A DLNA Protocol error has occured (7531)." Pls help. I really need help. If you don't, then you're one ignoramus.