Have you tried the password on the bottom of the sky router.
If it still doesn't work log in to the router from your pc and check the network key.
Okay, head over to http://192.168.0.1
Username: admin
Password: Password
Click on "Wireless Settings"
Then you should be able to check to see if its a WPA or WEP encrypted password ( just different levels of security) and also what the actual password is.
So much for making sure it was all in capitals lol