Blizzard Entertainment World of Warcraft Collector's Edition for Windows "battle net connect" Questions

starcraft battle.net wont let me enter Either you have an invalid CD-Key that does not work for Battle.net, or your internet connection is poor/missing. Hopes this helps!

...battle net ,since the day i downlaod the new updates... it says cant log on gotta manually connect internet... but my internet works.. so what i done i turned firewall off cause i thought it was not ...