I've been getting the same lack of EPG updates, YLD and so on and can absolutely tell you it's not the DHD4000.
I know, because I've got a second one and it did the exact same thing last night as my main one.
It sounds to me, like this type of EPG isn't used by any currently manufactured DVRs, so support is going away. A great shame, as I don't want to be forced to buy another DVR just because of this when my two work well enough - annoying bugs aside.
I guess I can always set the recordings manually, but that really sucks.