i don't think so, many network devices (Modem, router) have some enabled ports by default, i think no need to worry it at all

Hi All, when you found the voip can't be used, can you login on the modem ? if you can, please login on the modem and check what's the status of your VOIP account, it's up or down? also, at that...

who's your ISP? do you have another modem? please make sure the telephone line is ok. if the ADSL light off, maybe the telephone line has some problem, please use another modem to test or contact...

gpkumaran wrote Same problem here... India.. Connection hangs every 1/2 hrs.. just 1 month since i bought this modem :-( hi, who's your ISP? when connection hangs, what the status of the ADSL light?...

buntaran wrote Same problem here... Region: Indonesia ISP : Telkom hi buntaran, what's your ADSL bandwidth which is provided by ISP? from the pictures, the bandwidth is 1.2 Mbps?

hi vasanthm, very strange problem!!! you can use another computer to have a try, if the problem still, maybe you can ask the retailer give you a replacement,