Linkstation not visible after adding a second linkstation

[dsigrist]

I purchased a Linkstation Duo with a pair of 500G drives.  I went thru the normal setup and the Duo was visible in the Navigator screen.  I set up a daily backup of the Outlook PSW and it worked fine.

 

I then purchased a diskless Linkstation Duo, installed a pair of 650G drives.  I went thru the setup from a second PC, and it appeared in the Navigator on the second PC.

 

When I went back to the first PC, the original Linkstation was gone and the second one is visible. 

 

I tried to have the first PC try to discover the first Linkstation.  I powered up and down and nothing.

 

How to I get back my Linkstation?  By the way, the first Linkstation is in an XP Group called HomeGroup and the second PC is in a Win 7 Group called WorkGroup - if that helps.