If Internet is working fine, don't change any settings.Better save as screenshots present settings. of each page of the modem.Any problem later this will help , or post the problem here . Users will ask you about settings etc.a) do you use a Dialer/wanminiport where your userID/PW are entered to connect to the Internet for surfing ?b) Do you get connected to Internet after switching on the modem ? c) do you use any computer in Wireless mode ? No wire connection to the modem ?If no difficulty, Enjoy surfing.