Bonjour
As said before, I have 2 DLNA servers running. Let us say Server 1 and Server 2.
According to the capabilities of the renderers that I review or use, I associate each renderer to Server 1 or Server 2: right click on the renderer, associate with DLNA server… Server 1 or Server 2.
Till now, no issue at all. After a restart, either of JRiver, or the renderers, the association of each renderer with Server 1 or Server 2 is "kept" by JRiver.
With one new renderer (Trinnov Amethyst to be precise), I associate it with Server 2. If I restart JRiver, no issue, the association with Server 2 is kept. If I restart the Trinnov Amethyst, the association with Server 2 is "lost", I mean there is no more association with any Server, and the Server 1 being apparently the default Server, I am obliged to do the association again (right click, etc.)
Kind regards