http://srstrong.blogspot.com/2008/07/default-gateway-of-0000-in-vista.html This is related to Vista but this fix worked on Server 2008 RC 2 where I was having the issue. Default Gateway of 0.0.0.0 in Vista Strange one just occurred – woke up my machine from sleep, and plugged in the various cables in no particular order. Everything looked good, except no network access. […]