I have a single Genie (HR34/700) with the latest software updates (6/14). I have a single TV, so I do not have any of the mini units. The unit is connected to the internet, however I do not stream. I've done the reset which I've seen mentioned as well.
During the playback of recorded shows, the playback will will randomly freeze. Once the video abruptly stops, pressing Play on the remote does not start the video again. Instead, I have to press the fast forward once, sometimes twice, or press skip to get past that point in the video. Once I do that, then the video is fine -- until it happens again later in the recording.
If I skip a bad spot, press rewind to go back before it and then click play -- it will freeze again on the same spot.
During a playback of an hour long show, it happened 13 times -- which was kind of the straw that broke the camels back. We've had the Genie for about a month now and have had these same playback issues since day 3 (once we had some shows recorded).