o Connect ScanSnap iX500 to a computer via USB, and either perform a wireless setting using the ScanSnap Wireless Setup Tool, or follow the direction of the wireless diagnosis result.I believe its called 'ScanSnap Online Update'. So far the only thing that seems to work to get them to re-connect is a reboot Fujitsu has a firmware and software update tool as well that is normally installed when you load the software.
(*5): ABBYY FineReader Express Edition used to be included in the Setup DVDs bundled with ScanSnap iX500 or ScanSnap SV600. (*4): Mac OS X Snow Leopard v10.6 is supported by ScanSnap iX500 or ScanSnap S1300i.