bsnl broadband disconnect many timess some time after 2 or 3 hour and sometime 4 or 3 minute frequently ,, and sometimes it will work without any problem and automaticaly lights of modem adsl and internet switch back and internet again working .iam using TP-Link modem 9 month older modem ...anyone tell me pls is tht problem in my modem or network and i also alwys using wifi .