Frederick, can you please provide more information on what device your Remote is running (Mac, Windows, iOS, Android) and how the Remote is connected to your network? Also, what version of Roon Core is your SGC running, and what version is your Remote?
what is the IP address of the iPad and what is the IP address of the SGC core…both must be on the same subnet with the first 3 numbers the same … ie 192.168.0.xxx where xxx will be different.
its likely that your wifi is using a different subnet - often the case.
Tried Alex suggestion multiple time , I uninstall and reinstalled the Roon core program and the app. I unplugged to router for 20min. And the problem remains .
I was able to get it working. I had to press the Roon update and press apply changes. Need to do for both the SGC and the optical rendu. Thank you guys for all your help. I contacted Andrew at SMC.