I have read most of the troubleshooting threads in here to try and fix this issue. When I put the offline key in the same folder as the trainer, turn off my internet connection on my laptop, the trainer authenticates just fine. When I move the trainer and offline key to my computer, which has no internet, the trainers tells me it has to authenticate. I have turned off all the antivirus and firewalls on my computer and dont understand what is going on.