I have it running for example on the UP Gateway and never had issues. And this is first report of such issue I’ve seen.
When such happen, first suspect is multiple ethernet interfaces on the machine. The rule set says that all ethernet interfaces must become configured through DHCP for the boot process to complete.
You can also try to use HQPlayer OS image for NAA. It has different network configuration and bridges all interfaces (creates a software switch) and is happy once DHCP succeeds on the bridge interface, meaning on any of the ethernet interfaces.
You can turn HQPlayer OS image into plain NAA, by disabling HQPlayer Embedded there and you can also change it’s hostname to for example “naa”.