Beste antwoord door Ben van Tele2
Thanx for creating a topic here at the Tele2 Forum.
WhTurner has a point.
We need some basic info in order to have a better understanding of the situation.
Did you check all the cables, was the installation correctly done?
Check out this page too:
Veelgestelde Vragen voor Internet, TV, Bellen - Tele2
Is it in Dutch, but it does give you a general outline what could be wrong.
Also, here's the modem installation manual page:
Handleiding Modem - Tele2 Internet
Hope this helps.
Let me know what else I can do.