I do have the block heater. I also plug the truck in when its quite chilly but that didn't help with my starting issue. My problem is intermittent, well at least to the dealer since sometimes it starts and other times it doesn't.
you do have the block heater right?
I use the key fob, and im on the other forum as well.Look into the other ram forums as well, I think you will find this is less of a diesel problem and more of a ram problem.
Do you use the app or the key fob? Also the house your in is it good for RF in and out (good cellphone signal inside, able to see your wifi outside?)