@essebe An update on what happened...I got a RealTek Ethernet card from one of my frnd and gave a try ....Broadband worked very much fine...The speedtest done gave a result of 1.7 mbps dwnload speed and 198kbps upload speed...So am able to use the Broadband now with this card and the speed is pretty ok...So there had not been any pblm in my system as such... I just pulled the USB card out, cleaned it, inserted back and gave a try...Still it was in the same state...So the issue is not fully resolved but managing with an alternate solution now..