I have received from the provider the subnet x.x.100.56/29 routed by x.x.200.200 so I use for wan adress x.x.200.200 and for lan x.x.100.56 and I set de dhcp range to 57 to 60 (I use just 4 adress right now) and I use static dhcp to be shore the computer will receive the same ip. The problem is : after 1,2 or 3 days one of the computer (randomly) lose connection to internet but on the local lan is work fine. I have 3 computers and one surecom router (this is used to share internet to a separate lan). The surecom router is never lose the connection to internet. First I use an Zyxel 335 but I have the same problem, now I have wrt45gl with tomato. Reduced packet size - nothing change, the same situations. Also I try to chage TTL but the same problem lose connection. wrt45gl is set as router mode (change the rip mode don't resolve anythings) It will be good to change de lease time from 24 hour to a few minute? Any ideea it will be good ... please post it. Thank you in advance.