Disklavier

My PRC-100 stopped connecting to my Disklavier a while ago and I haven't been able to figure out what the issue is.  I've scoured message boards and manuals but can't seem to find anything that will help so I'm hoping the group might have some ideas.

When I go to connect it just searches for the piano but never finds anything.  My Iphone app is able to find the piano so I know the networking from the piano is fine.  It has to be the PRC-100 in my mind.

I've rebooted it.  I've looked at some of the help software on the device itself (which didn't work either).

I feel like the most likely candidate at this point is that the wifi card has failed and needs to be replaced.  Either that - or there is something wrong with the configuration files.

I have two small kids so when they see the PRC-100 they start looking for a game to play on it.  Who knows what they might have accidentally done to the configuration when I wasn't watching.

Any tips on the configuration for networking?
Any way to restore the PRC-100 to the original settings and start over?
Any thoughts on how to check to see if the network card has failed.

Thanks for any and all help.
Greg