I don't know if this helps anyone with what DN has been doing but Just passing this on! They seem to have slowed the speed at which it downloads!
c&p
While usually with DN it doesn't matter what channel you use to roll. They have made some changes how keys are being sent..
just for your info on how the stream works there are ECM & EMMs (keys are sent in these) that are sent at different intervals and can can also be sent with different EMM (key set) per channel. So yes being on a specific channel can have an impact on it rolling quicker/slow or not at all. If you were to log dn stream you would see that some channels didn't have a key EMM for about an hr while others like ch.200 or ch. 300 averaged a key EMM packet every 5-15mins.
I will not get into more detail on how it all works but trust me being on a specific channel can make a difference in autoroll