Well, I enabled QOS on the DIR655, and that seemed to do the trick.
No problem in terms of reception of movie.
(And, I can tweak it some more, if required!)
I have now watched a few movies, and I have one beef. For some strange, unknown reason, the DSM-520 "hiccupped" in the middle of
the movie being watched, (several times), and said that the DSM-520 had lost connection with the network.
(By the way this happened when it was in wired, not wireless mode!).
Anyway, required me to start the movie over again, and fast forward to the spot - what a waste of time.
Other than that, no issues so far.
By the way, it's also a hassle to manually refresh the dns-323 every time I add a new movie.
Again, why can't they make it "auto", or on some schedule?