Why don't you do an internet search on this issue. There's plenty of info.
Marantz UD5007, no more YouTube
Today 6/28/17 like any other day I went to use the YouTube feature on my Marantz UD5007 and an error message appeared that YouTube no longer supports this app. I can no longer access YouTube on my Marantz UD5007. That's half the reason I purchased this player. This is BS. I'm going to contact Marantz tomorrow and give them a piece of my mind. In the meantime, anyone have any suggestions as to how I can restore access to YouTube on my Marantz UD5007?