Computers on a local network cannot connect to iMacPro running Catalina 10.15.3
I have a new iMac Pro running Catalina 10.15.3 connected to home network via ethernet. Also on the network are a MBP 2016 and an iMac 2015 both running Mojave 10.14.6. The iMac is on the network via ethernet and the MBP via Wi-Fi. Connection to the iMac Pro fails from the MBP and the iMac but the iMac Pro connects to both the MBP and the iMac.