On Fri, Aug 4, 2023, at 18:11, Ross Boylan wrote: > Theory: since br0 has no associated IP address when socket creation is > attempted, the socket creation fails. If so, I need to delay socket > startup until br0 has an IP4 address, but I'm not sure how to do > that--or even if that is the problem. This is almost certainly the cause, and the reason that the 'FreeBind' parameter can be set in .socket files :-)