i installed the bsnl broadband dataone connection in one of my friend's house. but whenever i use the connection, it disconnects within one hour. i personally checked the ip,dns and dhcp configuration. the username and password also are correctly entered.There is no ethernet card attached. The modem has usb configuration. The same problem is also occuring in another person's house who also has usb configuratuon who has airtel broadband using beetel modem. When contacted, the customer care people say that this may be due to pirated versions of windows XP. if this is true, then it ok , if its not then what might be the possible cause be for this disconnection ?