This is a you problem, not a trainer problem. Follow the instructions carefully.
After you log off with the trainer on in offline mode, do you completely shut down Uplay? The program (uplay) still runs in file manager unless you shut it down completely. Loading up the game through Uplay initiates the bypass so if you do not flush the memory, it's not going to work in online mode which is deliberately blocked by the trainer.
Being that EAC runs from a kernel, it may even be necessary to restart your computer to enable it properly for Online play.
the issue seems to of fixed its self, so god knows what the problem was. the game and the trainer were both up to date. i think Uplay was having a funny few hours. i have the Uplay version because i used some 100 of my Uplay points to get 10% off
thank you i will try follow that. do you turn internet off or something else ?
This issue is not user issue,but a trainer issue,so explain me than why the game is working when i don't use the trainer,then i don't have to integrity my game files,and yes i read every thing carefully.
No, you don't have to. Just set uPlay into offline mode if you want to / feel more secure, but there is no need to go completely offline