Check here for getting HPNA to work with RRR and Rioplay. I have had the lock up issues on RRR myself. I was wondering if it was this techinque for adding HPNA. Maybe it wasn't....

http://rioreceiver.comms.net/php/showthreaded.php?Cat=&Board=Technical&Number=1965&Search=true&Forum=Technical&Words=Zimage&Match=Entire%20Phrase&Searchpage=0&Limit=25&Old=allposts&Main=1938