i have a black book with Hughes Net as my service provider. I have a wireless router, but i have a big problem. When i first power up or restart my computer it connects perfectly, but when i put it to sleep and wake it up it doesn't connect!!! In internet connect it says that i have excelent signal strength, but when i open Safari it says that i'm not connected to the internet! can anybody help me?

Please-
-James

(im on 10.4.11)