2 @ a time ???

Hi !

My ISP does not allow the same username to be connected to internet at the same time …
eg : Suppose I connect to net from HOme before my father connects to net from Office , he will not be allowed to connect !!!

At home we have to PCs … we want to connect to internet from those PCs , ( we want to connect to internet at same time )

IS THERE ANY WAY TO DO THIS ( NO PROXY SUGGESTIONS PLZ !! )

Easy and cheap ( probably FREE )solution !