So me and some friends were playing monster hunter yesterday and while we were playing the game seemed quite laggy. Then today me and another friend wanted to play yugioh gx but the game lagged SO badly that we couldn't play more than 2 min before it would just 'hang' at one of our turns and neither 1 of us could do anything. After that I suggested we turn off our psps and turn off wifi switch (we usually keep it on even when we aren't playing multiplayer). 5hrs later we tried playing again and we got through one match with barely any lag. Then the next match about 3/4ths done it started hanging again and we couldn't finish anything because it was lagging so badly. Any ideas how to fix this or whats going on?