I have three computers and a BSNL Broadband modem, Computer A and Computer B is connected via the modem. Computer B has another LAN card. Computer B and Computer C is directly connected by cross cable. Now the problem is internet cann't accessed from Computer C. Computer A cann't access Computer C and vice-versa. When two LAN connection of Computer B is enabled, then any of two connection works properly, and another doesn't work. But when any one LAN connection is enabled, then that connection works properly. What will I do now, to connect three computers together and to access internet from each computer..