I dunno what to tell you. Maybe it's a bad ethernet port, maybe it's a bad HDD. Could be a slow connection (and you need to port forward). It could be a number of things, up to and including the possibility that you're spoiled by PC and PS4 speeds.
Watch me stream games and hunt trophies on my Twitch channel!

Check out my Twitch Channel!:
www.twitch.tv/AzurenGames







