thanks!
that was easy! this was the step that i had missed earlier. i had earlier just enabled 'MAC cloning' in the router-settings, and had left 'get current PC MAC address' left untouched (not knowing what it was). however, reading this page here
http://www.linksys.com/au/support-article?articleNum=142912
and then the underlined part of your post, i enabled that, and the router got a WAN IP and wifi started working almost instantly!
also, reading posts by 'mgcarley' and 'VinceB'
here, i had decided to call the ISP tomorrow to release the MAC-binding, but not needed.
for anyone else who might land here sometime or the other, this is what i did (may help; DDWRT screens below):
net through LAN most probably would work for you just 'out of the box', but setting up wifi initially may confuse you, so....
- first using ethernet/LAN itself, set up the prerequisites on the router-page (@ 192.168.0.1 or 192.168.1.1 or whatever). go to 'set-up'>>'basic set-up', enter the username-pword given by the ISP....then check 'advanced settings', and enter the 'service-name' as 'hns', as shown below
click on 'apply settings' and 'save' at the bottom
- then go to 'MAC address clone' under 'set-up', and 'enable' it if disabled, plus click on 'get current PC MAC address'.
click on 'apply settings' and 'save' at the bottom
- reboot your router (remotely or manually), disconnect from the LAN session on your PC and enable wifi after a few seconds, and lo!
P.S. - you should get to see the WAN IP on the top right corner (hidden by a red bar as in the screens above) if successful.
@zapout
@dheerajjotwani - configured fine? anything else?