When running ETCnomad Eos software on a Mac computer you may not see any output via network nor connection to another console in v3.0.0 and above, but may have full output in v2.9.x. In the About display, the computer's IP reports as "No Network Available," even though the shell settings report an online network port.
Explanation of Issue
The minimum published supported macOS version for ETCnomad v2.9.2 and v3.0.0+ is macOS Mojave (10.14). Eos on macOS High Sierra (10.13), is not supported. Eos v3.x on older macOS may fail to output via network (sACN, Artnet, etc). It may fail to operate in multiconsole mode and be unable to connect to another console/ETCnomad as a Backup or Client.
Update macOS to version 10.14 of higher.
macOS 10.14 is the minimum supported version for Eos v3.x but this will change over time. The minimum supported OS version for each Eos software version is provided in the Support Article All Eos Family Software Versions.