Belkin_N1_0332DE switching itself off

[Nicosia]

I got this new router the other day from London Gatwick Duty free and here in Cyprus i have cytanet ADSL connection so i connect the router. put in setup wizzard country: other as it has not got cyprus and i put dynamic IP since the other ones wont work and after X amount of time the router just switches itself off for no reason. anyone ever had this problem with Belkin Product or know why it would do that? i searched google for ages finding nothing.. some results say it must be a faulty router, im hoping that is not the case and maybe i could fix it in the admin page or some other way