Re: how to setup Asus RT-N66U
From this thread http://community.plus.net/forum/index.php/topic,113213.0.html
Quote Yes, more or less. In the existing TG582n router, log into the admin interface and disconnect the PPPoE session using the "Disconnect" button on the Broadband section. Then unplug the router. Leave the modem on - try not to disturb it if possible. Then plug the Asus router into the modem and power it up. Log into its admin page and you should get a "set-up wizard" which will walk you through the set up. It should auto-detect the type of connection (PPPoE) required. You'll be asked for your Plusnet username and password (the username is in the format firstname.lastname@example.org) and you can configure the wireless network. It's all very straightforward. If you have devices that can use the 5GHz wifi band, it's best to give the 5GHz network a different name (SSID) from the 2.4GHz network, then you can easily see which network your device is connected to. If you don't then you can turn off the 5GHz radio and save a bit of power.
If you get stuck with anything, come back and ask!