I have the WRT54GL ( alittle diffrent, it has more internal RAM & ROM + speeedboost) & it was just plug & play.
You have any router security that may mess with it?? Proxy address??
It notes you need at lease 1.5Mbps for it to work.
Also check to see of is set on.... Menu>Setup>Viera Link setting> ON
Try going to menu >setup> scroll down to 'Networksetting' see if it is set to auto for IP and DNS.
I just bought a 58" Panasonic V series Plasma TV with Viera Cast. I cannot get the the TV to connect to the internet through my Linksys Wireless router (WRT54G). I have the TV hooked to the router through CAT5e cable. I have tried several times to change the network settings on the TV and the settings of the router. The best I have gotten in a message on the TV when I do a connection test that says 'Home Network' but indicates that the Gateway is not responding.
I have no idea what to do. Thanks for your help.