well, I now dumbed down the Linksys wrt54g AP. Probem still happening. Notice the hang/reboot when Ilist available connections on the 770. Also, noticed an extra AP appearing in the connecion list mirroring the Linksys. This extra connection is the name of my AP prior to me changing the ssid.

It might be worth factory defaulting my Linksys. This will reset the the DHCP table and maybe tte 770 will get a new address.