HiI have an unlimited 512 kbps MTNL broadband connection Mumbai. Since the past one month my internet connection automatically keeps disconnecting/connecting every 5 minutes. i have made end number of calls to customer care . MTNL says they'll send a repairman over but they never do.Even called up 1504 did troublehooting twice but till the problem remains the same.My Modem/Router details are as follows :- Sterlite SAM300AX Sr.no - 8ACZ123641 - 10/2008.Please Help !!!!