Remove all cables from the router except for the power cable. Leave the power cable connected.
Get into a position in which you can be holding the reset button and have your other hand free.
Press and hold down the reset button. Hold this for 15 secs. Then remove the power from the router. When you remove the power continue holding down the reset button for another 30 secs.
Plug the power back into the router - still holding down the reset button. Wait for another 45 secs and then let go of the reset button.
Finally, wait for 10 secs and then remove the power again. Keep the router unplugged for 60 secs, then plug it back in.
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