How do you grant access to a few users, while restricting others, on the same network?

Make sure that there is not an existing share with the same name. Go the Web Administration Page and click on the Share tab to verify that there is not a share with that same name. Even if you cannot see the share, it may exist on a removable mass storage device. If this is the case, and the device is not plugged in, the share names will still be in the registry of your LaCie Ethernet Disk. In this instance, you will need to delete the “broken share” before creating the share again.