Router config?

[zagato89]

hello guys i just bougth a curve 8520 some days ago
and i was unable to use my wifi
i cant autoconnect to my homes wifi cause i get an "unable to find ip" error
so i have to mannualy write down ip/DNS/gateway/etc data to the BB
finally i can connect but i still cant browse cause i get the "Unable to find requested server" error on the browser

at first i thought it was my BB problem so i read almost all guides avalable to set up wifi on the net and still got no success
so then i thought my carrier was someway blocking wifi in my device
but yesterday i took my BB to my gf house and i succesfully browse the net with my device wifi

so i think i need to tweak something in my router (?) open up some ports, i really dont have a clue but its kinda clear that the device its fine and can enter to wifi

i cant find any gude related to this so anybody cant help me?, thanks
sorry about my english :P