There have been a lot of problems with r14 and r17 when using the n*p* server.
There are many reports of constant freezing and screens locking up.
At start up I always have to unplug my unit when I start watching TV because it is locked up.
I am now unplugging the unit whenever I am not watching TV and plugging it in when I want to watch.
In addition I find that the unit frequently freezes during programs on that service.
When that happens I have to unplug the unit and plug it back in to get it to work.
I am not sure how it works with other servers.