Check your activation letter for the date your Sky Broadband service is due to be activated. If the date hasn't arrived yet, or you have yet to receive your letter, leave the Sky wireless router plugged in and the lights should come on as soon as you are activated.
If it's more than three days past your activation date, check your phone line. Listen to your phone to see if you get a dial tone or the crackling line of a poor connection. If the line is not working, you will normally be unable to connect to your broadband service, and a poor connection will lead to an intermittent service at best. If you do not get a dial tone or the line is crackling you need to contact your line provider. If you have a BT line then, contact BT's faults department on 151 (from a BT line), or 0800 800 151 (from any line). If you have a Sky Talk phone line then contact 08442 410 515
If your phone line is working, unplug all other devices (e.g. telephones, Sky set-top boxes or fax machines) from your telephone line, and try replacing the microfilter you have used to connect your Sky wireless router to the phone socket with one of the other microfilters provided.
If this does not correct the problem:
If you've tried all of the above and the problem still isn't resolved, contact Technical Support on 08442 410 515.