Hey Philip, missed this -- yes, using ethernet on a problem laptop worked just fine and the time of issue. So I have been doing work on this and narrowed it down. Laptops cannot connected because instead of obtaining a new address via a DHCP DISCOVER process, it keeps trying to revalidate -- ithe old (Walnut) IP, likely sensing it's connected to the old network, which is true -- because of our VPN mesh, the old gateway is reachable, and the laptop does not give up it's non-working IP without a reboot. Currently, I'm focusing on Apple's use of Simple DNA: https://datatracker.ietf.org/doc/html/rfc6059
... View more