I think I might've found an unannounced change in the Netflix plans. Up until today, I've been able to do instant streaming while by parents and my brother do the same in their rooms. Now when I start up a stream on two different machines the error code N8107-154-5006 comes up, saying that I've reached the limit for my plan.
Is this happening to any other people? I feel somewhat cheated because my plan (1 disc out) still says unlimited watching and I haven't seen any notices about changes.