Hi ISA Gurus, I am puzzled whether my ISA setting is optimized, W2K AD Environment ISA as intergrated mode and internal NIC pointing to Internal DNS which have forwarder enabled. I always encoutered error like unable to resolved and while do a DNS recursive test it always failed(timeout is 90). ISA Internal NIC setting IP: 192.168.0.1 SBM: 255.255.255.0 GW: NONE DNS: 192.168.0.5 Internal DNS Server(AD n DC) IP: 192.168.0.5 SBM: 255.255.255.0 GW: 192.168.0.1 DNS: 127.0.0.1, X.X.X.X (ISP DNS) (Forwarder enabled pointing to ISP DNS) Is the above mentioned settings optimized? Or it is better to turn off forwarder? Note that client DNS is point to internal DNS and secondary pointing to ISP DNS. Please advice. Thank you so much. best regards, lwloo 2k'3