The RoonServer does not have Access to Local Network anymore,
this started with the last version,
when started Roon.app from launchctl 
From the macOS UI there are no issues.
I guess nobody tests this kind of thing at Roon …
05/18 00:13:42 Debug: connecting to server attempt number: 21
05/18 00:13:43 Debug: connecting to server attempt number: 22
05/18 00:13:43 Debug: connecting to server attempt number: 23
05/18 00:13:44 Debug: connecting to server attempt number: 24
==> RoonServer_log.txt <==
05/18 00:13:44 Debug: [easyhttp] [17] POST to https://api.roonlabs.net/discovery/1/register returned after 183 ms, status code: 200, request body size: 1 KB
05/18 00:13:44 Trace: [inetdiscovery] registered 1 devices, 3 services
==> Roon_log.txt <==
05/18 00:13:44 Debug: connecting to server attempt number: 25
05/18 00:13:45 Debug: connecting to server attempt number: 26
05/18 00:13:45 Debug: connecting to server attempt number: 27
05/18 00:13:46 Debug: connecting to server attempt number: 28
05/18 00:13:46 Debug: connecting to server attempt number: 29
05/18 00:13:46 Info: [stats] 405566mb Virtual, 677mb Physical, 211mb Managed, 466mb estimated Unmanaged
05/18 00:13:47 Debug: connecting to server attempt number: 30
05/18 00:13:47 Debug: connecting to server attempt number: 31
05/18 00:13:48 Debug: connecting to server attempt number: 32
05/18 00:13:48 Debug: connecting to server attempt number: 33
==> RoonServer_log.txt <==
05/18 00:13:49 Debug: [easyhttp] [18] GET to https://api.roonlabs.net/push-manager/1/connect returned after 171 ms, status code: 200, request body size: 0 B
05/18 00:13:49 Debug: [push2] push connector url received from push manager: ws://push-connector-v2-0.prd-roonlabs-1.prd.roonlabs.net/
05/18 00:13:49 Trace: [push2] connecting to push2 connector at ws://push-connector-v2-0.prd-roonlabs-1.prd.roonlabs.net/
==> Roon_log.txt <==
05/18 00:13:49 Debug: connecting to server attempt number: 34
==> RoonServer_log.txt <==
05/18 00:13:49 Trace: [push2] connected to push2 connector at ws://push-connector-v2-0.prd-roonlabs-1.prd.roonlabs.net/
==> Roon_log.txt <==
05/18 00:13:49 Debug: connecting to server attempt number: 35
05/18 00:13:50 Debug: [easyhttp] [4] POST to https://api.roonlabs.net/device-map/1/register returned after 179 ms, status code: 200, request body size: 1 KB
05/18 00:13:50 Trace: [devicemap] device map updated
05/18 00:13:50 Debug: connecting to server attempt number: 36
05/18 00:13:50 Debug: connecting to server attempt number: 37
05/18 00:13:51 Debug: connecting to server attempt number: 38
05/18 00:13:51 Debug: connecting to server attempt number: 39
==> RoonServer_log.txt <==
05/18 00:13:52 Info: [stats] 407134mb Virtual, 2386mb Physical, 1222mb Managed, 1164mb estimated Unmanaged
==> Roon_log.txt <==
05/18 00:13:52 Debug: connecting to server attempt number: 40
05/18 00:13:52 Debug: connecting to server attempt number: 41
05/18 00:13:53 Debug: connecting to server attempt number: 42
05/18 00:13:53 Debug: connecting to server attempt number: 43
05/18 00:13:54 Debug: connecting to server attempt number: 44
05/18 00:13:54 Debug: connecting to server attempt number: 45
05/18 00:13:55 Debug: connecting to server attempt number: 46
05/18 00:13:55 Debug: connecting to server attempt number: 47
05/18 00:13:56 Debug: connecting to server attempt number: 48
05/18 00:13:56 Debug: connecting to server attempt number: 49