Game wont connect! Help!

hey, I just made an account and i downloaded WOTLK expansion from download tab, but when i want to log in, it says i cannot connect and ive tried logining in with my username, with my mail and it doesnt work at all..

is there anything to do after i download the client ?

hello fellas.

i have dl woltk and after choosing the realm i got stuck on connected. Idk what to do i have check the realmlist, delete the different folder, reboot pc but nothing is changing still stuck after choosing realm at connected