oke guys..i found out why do we get so much d/c --> ur internet connection is unstable or u have some problems with ur network card is not working propperly. What i did is: changed my network card and used Repair button at Local Area Connection ^_^ ...and now all works fine (i get d/c 1time per day ..or smt like that) ...u shoud try it out...
Edit: if u dont change ur network card ..just repair...hopefully it will work.