Did anyone solved the problem described by "HKNinja" yet? I have exactly the same problem of not able to obtain an IP from the AP (Adapter: Dlink DWL-520g Router: Dlink 624+), with DHCP on and not (manual).
Odd enough, I have 2 520g, one of them works just fine and it's very stable but not the another.
Odd enough, I have 2 520g, one of them works just fine and it's very stable but not the another.