I assume, that the player probably shows up twice because you selected it in the Upnp/DLNA bridge plugin, which makes it a DLNA player. However, since the server is already running on that device, it is redundant to additionally stream to it via DLNA. Try throwing „Library“ out of the plugin and see if that’s the solution.
„e9826b45c862“ looks like another LMS server in your home network. Either that, or another player/plugin causes that to show up. I recommend that you review the settings of your plugins and your players again and switch off everything that you do not need. You could also try turning off the players/plugins individually to see which one is generating „e9826b45c862“.