I was formed a network there have 3 PCs and i was given 3 defferent IP adressess same work group... and cabling and hub is also correct but .. U asume that the 1 st PC as A,B and the last PC as X then A is the Server... there have connectivity between A to B and A to X also but there have no connectivity between B to X and i cant understand what is the problem occuring in it please give a solution to me