I have Dell MFP 1600n with network interface. It was scanning to folder, but from a period of time it cannot. It displays an error "Id not found" on its display. Than I noticed that the scan software on the computer has lost connection with the scanner. I can ping it, can print but cannot scan. I uninstalled the software. Downloaded the newest one from Dell - it found it over the network through the installation, but when came the moment to add scanner - it is saying could not found device. The computer is attached to domain, and running windows xp with all updates on it.