when i turn on the computer (not so much after a restart though), when OSX is booting up there is a lengthly delay during the "initializing network" phase.
i tried a verbose startup and here's what i saw when it got to that point:
Configuring network
Initializing network
*time passes...*
ipconfig_get_option failed (os/kern failure)
>> looks like this is the problem. startup continues after this and everything seems normal. 802.11b and ethernet work fine. i'm using a PBG4 550mhz, 256mb, 10.1.5.