Ok I have a 8530 curve, that will connect to my web browser when it is using wifi but it will not connect to my blackberry messenger. It is connected but the little bubble that says wifi is not lit up. but i can surf the net. Does anyone know

i have the blackberry pearl 8120 the phone got too full and i had to wipe my blackberry before i wiped it i could connect to the wifi i have at home now when i hit scan it says scan cannot be performed and when i tried to manually add