
go to device manager > network adapter

right click on the name of ur NIC card,nd then properties

go to advanced tab on top row,nd in there u'll find on the left side
a property thats "media type" or "connection speed" etc...that varies according to the manufacturer
click on it,nd on the right hand drop down menu choose autodetect,instead of 10BaseT,100BaseT etc...
restart nd check it out...plug-in nd plug-out is due to mismatch in connection speeds between 2 machines...
