Jriver DLNA Streaming to Oppo 103 problem

[edorr]

I have two Oppo's 103s on my network, and they always both worked fine with Jriver / Jremote. Mysteriously, one of the two stopped showing up as a redendering device in Jriver / Jremote. I tried rebooting server, router etc. No joy.

 

On the Oppo that does not show up in Jriver, the server running JRiver / DLNA does show up as a music library, so I can play music, but I need to use my Oppo navigation on the TV screen, and can no longer control my library using Jremote.

 

I assume it is a Jriver issue, not an Oppo issue. Any suggestions how I can troubleshoot / fix this?