Hi. I have a DCT that I had on my Provari and it was working fine. I believe it was a 2 ohm or there about. Then I switched it to my Altoids mod and also tried it on my gripper and it wouldn't work on either device. When I tried going back to the Provari with it, I end up with an E1. It's an 808 thread and I have to use a shorty adapter with it on everything but the gripper, which is also 808 - so I know it's not that. Any ideas on why this happens? It's happened before so I know it's not a one time thing. Thanks.