hey americas army help

hey i know this should be in americas army forum but like no one goes there any more and i need some help. if you play it plz help me, i dled it and i cant play on at a internet server and it says i dont have authentication, but i do have an account but when i try to log it, it says no user record i think and when i beat the marksmenship training i cant go past because after i click continue i have to log on but it goes back to the menu screen to log on and i dunno waht to do plz help, i want to do the trainings