Incorrect insertion
After incorrectly inserting my pin 3 times, I heard the unmistakable pained groans of my wife from behind me.
Spoiler:
Website is subject to occasional intereference from an unknown source...
http://icserver.no-ip.biz/coventry/
http://icserver.no-ip.biz/coventry/viewtopic.php?f=19&t=58673