ZTE WLAN Router and GigabitEthSwitch so Server and Bridge are connected via Ethernet LAN over the same switch. The Remote (MacBook Pro) is in the WLAN of the ZTE Router.
No change done on any of the other devices only on the Bridge.
Befor I ran roonbridge 1.7 (571) on the archlinux system, after updating to 1.8 device is still visible in Info but not in Audio (it uses standard ALSA like a rasberry pi for instance).
It may likely be related to the outdated kernel of your Restek MAMS Archlinux system being at 3.18.x
There’s mention of required Linux kernels in Roon’s knowledge base
Here’s the relevant excerpt: Recent Linux Kernel
We test with recent (4.x) kernels. It’s likely that older ones will work too. A bunch of relevant ALSA work was merged in around 3.19, so going back further than that might be asking for trouble…
That’s the crux with today’s computer HiFi, especially with high-end manufacturers incorporating it into their products - backwards compatibility isn’t guaranteed.
I suggest checking with RESTEK, but am not too confident that they support OS updates…