I have three machines set up in a LAN through a CNET router. These three machines are all set to automatically detect their IP addresses from the DHCP server within the router. All three machines are running WIN 2000 PRO and all are similar in makeup with the exception of their ages. Machine 1 and Machine two are the oldest and they are both able to see each other and sharte data freely. Machine 3 is running a RAID card with twin 80GB mirrored 7200 speed drives and a 40GB that has the OS on it. The router identifies aLL three machines and assigns them IP addresses. I also have shares setup \on machine 3 so that data is ready to be accessed by the other two compuiters. The only problem is that while machine one and machine two communicate correctly machine three is only a one way machine. Meaning it can ping all of the other computers within the workgroup but they cannot ping or access it. I have tried everything my measly little mind can think of down to self assigning IP addresses but still nothing works. I need to get this network working. Am i missing some sort of security setting or something that is preventing two way communication with this third machine. PLEASE HELP>