Router. RB1100AHx2, v6.40.4.

We have this strange behaviour: we have set up a hotspot with client isolation, but all clients CAN reach port 53 and port 80 of all our internal network. We tried to match this traffic with firewall rules but didn't match.

If a do a nmap from hotspot network, router seems to answer to all IP's in all our internal ranges and shows 53 and 80 opened (it gives the hostname if there is a "real host" behind any IP and gives open 53 and 80 ports even if there isn't any service at the host).

Any help? I can export our config if needed.

Thank you very much