For some reason mine didn't have just the option to just factory reset the PC card. Under the menu you told me to check (Sys admin>Config management >config import) I see: system Config, serial port config, clustering config, custom menu config, system user config.
Regardless I just selected all of them to see if it would work but still nothing. I bought this unit used from a friend so I probably can't send it in for RMA. I just bought the card used so I could connect to my wireless and log into the digi from my laptop and not be chained to a cord. Just thought it would work fine!