Then this is not really FR problem, is it? Figure out how to configure your gateway properly, or ask/hire competent people to do it. -- Fajar Hello, Fajar, The internet gateway drop the packet, so it's not a FR problem. We tested the NAT/PAT, Packet Forwarding and Application rules on gateway router. So far, only one WIFI router in private network is supported. When the WIFI router send the authentication request, the request port is dynamic, so we have to set up the packet forwarding to a single WIFI router. We're looking for some soluton like proxy etc. Thanks! Tom