Red light on router stays on

[wireless]

Most of the time the light on the right hand side is glowing red. I've done a restart and it always comes back. I'd say it's red about 60% of the time. What is wrong and how do I fix it?

More... (http://forum.telus.com/t5/Internet-TV-Home-Phone/Red-light-on-router-stays-on/m-p/67235#M10200)