Totem is the primary media player in GNOME. Using a few plugins, it can be used as a UPnP/DLNA client to browse and play content that is shared by a DLNA media server like ReadyMedia.
- Install Totem if you have not already done so:
$ sudo apt install totem
- Install the plugins necessary to turn it into a DLNA client:
$ sudo apt install grilo-plugins-0.2-extra
- Open Totem and click the Channels tab. Among other channels, you should be able to see your DLNA server. You can browse its contents and play them back using Totem.
Tried with: Totem 3.18.1 and Ubuntu 16.04