I have a BSNL broadband connection home-500. Using modem Ut300R2U.I use Xp and Vista both. I keep getting an exclamation mark in the activity window (connection status)right below saying "Local Area Connection, Speed 12.0mbps, Limited or no connectivity." My speed is a bit slow. What could be the reason. BSNL engineers who come to install the modem dont know anything,when contact they dont respond,they say dont put any DNS nos and IP address windows automatically asssigns one. Is it true?