Dlink and long DHCP names
Nasty suprise today: Apple's default computer name, is ass-sanely big, containing my full name and the model name of the computer. My dlink router (DI-624), apparently, has no bounds checking - even on the latest firmware. Plug in computer (or turn on wireless) and the router would suddenly reboot...
Anyone else having problems, try shortening your computer name (mac: System Preferences -> Sharing).

Wow, did this actually fix your d-link reboot problem? This is a big problem with d-link 624 routers. This info should be spread far and wide.
Sure did. Computers rock!