wireless gone bonkers

i don't know what happened and i am clueless as to what to do. i had no problems with the wireless connection up until last night when we had a power interruption. after the power was restored i can't seem to use my wireless connection. i know it's not the router and it's not the modem either. i feel i just have to do something but i don't know what it is i have to do. im not at all techie and my cousin who usually does techie stuff for me is at work. thank God i can still connect to the internet using my desktop but i miss using my asus. i have to finish the mortgage quotes for my dad. of all the days this is to happen. i hope i can restore my wireless connection today.