Active configuration (w/ defaults)
EPICS_PVAS_INTF_ADDR_LIST = 0.0.0.0:5075
EPICS_PVAS_BEACON_ADDR_LIST = 127.255.255.255
EPICS_PVAS_AUTO_BEACON_ADDR_LIST = NO
EPICS_PVAS_BEACON_PERIOD = 15
EPICS_PVAS_BROADCAST_PORT = 5076
EPICS_PVAS_SERVER_PORT = 5075
EPICS_PVAS_PROVIDER_NAMES = QSRV
2021-04-19T10:59:32.552 Creating datagram socket from: 0.0.0.0:46421.
2021-04-19T10:59:32.552 Broadcast address #0: 127.255.255.255:5076. (unicast)
2021-04-19T10:59:32.552 Setting up UDP for interface 192.168.1.145/255.255.255.0, broadcast 192.168.1.255, dest <none>.
2021-04-19T10:59:32.552 Creating datagram socket from: 192.168.1.145:5076.
2021-04-19T10:59:32.552 Creating datagram socket from: 192.168.1.255:5076.
2021-04-19T10:59:32.553 Setting up UDP for interface 192.168.122.1/255.255.255.0, broadcast 192.168.122.255, dest <none>.
2021-04-19T10:59:32.553 Creating datagram socket from: 192.168.122.1:5076.
2021-04-19T10:59:32.553 Creating datagram socket from: 192.168.122.255:5076.
2021-04-19T10:59:32.553 Creating datagram socket from: 224.0.0.128:5076.
2021-04-19T10:59:32.553 Local multicast enabled on 127.0.0.1/224.0.0.128:5076.
2021-04-19T10:59:32.553 Sending 49 bytes 0.0.0.0:46421 -> 127.255.255.255:5076.
2021-04-19T10:59:32.793 Sending 49 bytes 0.0.0.0:46421 -> 127.255.255.255:5076.
2021-04-19T10:59:33.272 Sending 49 bytes 0.0.0.0:46421 -> 127.255.255.255:5076.
2021-04-19T10:59:34.230 Sending 49 bytes 0.0.0.0:46421 -> 127.255.255.255:5076.
2021-04-19T10:59:36.146 Sending 49 bytes 0.0.0.0:46421 -> 127.255.255.255:5076.
As far as I understand address 127.255.255.255:5076 is right to broadcast. But in my other OS and in your example IP is defined (e.g. 192.168.18.190). Problems is able to receive message due to network setting?