Apple IP (AppleShare IP) Gateway - Manual (Page 70)

A user who has previously accessed the gateway can no longer do so.
m The client’s IP address has been assigned to another client by the gateway.
Have the user restart the Macintosh to get another address.
Note: This will only happen when the gateway is in a different zone than the
client and the gateway is restarted after the client is assigned an address. The
gateway loses the information about the previously assigned addresses when it is
restarted, and it cannot find the client computer because it is in a different zone.
The Gateway Information window indicates an address conflict, and the gateway will not
assign that address to a user.
m A node on the IP network is using the IP address listed. Find the node and
change its address or use an automatic range that does not include that address.
62 Chapter 4 / Troubleshooting