Onan,
The router is 802.11g, but the only variant of the PC and other devices available were 802.11b.
I got a 802.11b PCMCIA card for the MC-500 because they are they only ones listed on the compatability list, but I´m getting a 802.11g card as well and will see if it works. Since the module in the Shuttle is USB I might be able to upgrade that as well....