hi
thanks for the quick reply, i am thinking of:
using ignore unknown clients in dhcp
change the ip of my dsl router
i think his desktop is going directly to my dsl router since it has the same ip of his ap gateway, that's why the desktop surf much slower than the laptop which is ps box as gateway unlike the desktop using the ap as gateway . so may be changing my dsl router's ip helps, ill try that one
and btw ya chady i am running squid in transparent mode, i try what u said, i think it doesn't work.