Yes this has happened four times now - on every occasion that we were up watching Netflix at midnight so it seems to be 100% repeatable. The most annoying thing is that it always seems to happen at a critical point in the film which spoils the experience with the 10 minutes or so to recover.
I've tried a direct ethernet cable to the router and it made no difference. I also tried checking for SW updates (both players and box) while streaming Netflix and it didn't crash. I'll try pausing the streaming at midnight then start it again five minutes later to see what happens.