I have two Windows machines, both wired to same hub, one of three AC1900's.  Device Isolation is turned ON, on one of them. 

I can still ping out from the "isolated" device to the "non-isolated" device.  IIS is running on the "isolated" device, but can still be reached from the other machines over port 80.

I expected the isolated machine to ONLY be reachable from the internet (through Port Forwarding), and not be able to connect to any other LAN clients (WiFi or Ethernet).

What am I missing here?

I'm running the latest config app on iOS.

Thank You.

- Burt