I have win xp pro sp3 pc . now i have two lan card one is onbord and another I attach. Now my Pc is connect from server through switch and now i have BSNL broad band connection but when i Attach my broadband connection I have to Disable my Office lan and when office lan connect i would not use Internet. so Kindly Suggest me how i can use both Local office network and Internet connection without any failure . so on one time i use my server application and internet .