Are These XFinity DVR Compatible Boxes?

Last Wednesday, I changed my TV package to the Ultimate TV package, which is supposed to include 20 hours of DVR cloud.  I'm still waiting for it to work as every time I try and record, I get a pop-up message on my screen that shows a circle with a line through it and a message: "We can't record this program.  To record, you'll need a DVR subscription."  I've gone through three phone calls, and a technician who came out, called up customer support and took that through five people from Tier 1 to Tier 3, and still nothing.  I did some research and I saw that some Xfinity boxes are not DVR compatible, so I made a list of the model numbers.  I hope someone can tell me if these boxes are good or do I need to exchange them. 

PXD01ANI
PX022AN_
PX022AN_
PX022AN_

CXD01ANI
SX022AN_
PX032ANI
PX032ANI