With the early firmwares for the 770 I had a problem with the wireless routers at my office, where it would associate with the network properly but would not pick up an IP address from the DHCP server. This problem seemed to be solved with the last 2005 OS release (in January 2006?) but now I see that it's back again with the 2006 (Maemo 2.0) release. The Connection Manager reports it as "connected with link-local address." Bummer. Hope it gets fixed (again) by the time the final firmware ships.