WPS flashing red

[#1]

Hi, Probably a stupid question but here goes. I just had to move our router to plug in an extra ether net lead and afterwards I noticed that the wps light was flashing red for a few minutes. I didnt turn the power off while moving and pluging in the extra lead so it wasnt the router rebooting. What is the wps light and why would it have been flashing.
Thanks in advance.

[#2]

That light flashes amber when the WPS (WiFi Protected Set-up) button is pressed, then flashes red after a while if a connection hasn't been made, before eventually turning off.
Possibly you inadvertently pressed the WPS button on top of the router when moving it.