Roon core is running on a Mac mini model 2011, 8 gb ram, i5 2.5 GHz cpu.
router Fritzbox 7490, ethernet, no vpn.
Topping dac on USB, and external disc on USB.
Library holds 46000 tracks
My Roon setup was running perfectly.
Today, 21 Sep, I updated the remotes (ipad, iphone) from apple store in order to upgrade to Roon 2.0 .
When I realized that the mac mini was not compatible, the remotes could not connect to the core. I downloaded the roon legacy in the remotes and the legacy app for the core. Now the remotes search for the core but cannot find it.
The previous updated remote apps can see the core but it shows an error that they running different versions. This shows that the network is OK.