Only 1 WD TV Live displays on WDTV Remote App

I am hoping to get some assistance.  I have 2 WDTV Live boxes on my network for 2 tvs.  I am using the Apple WD Remote App and can only see one of the devices,  It appears as the last box added now becomes the only box that can be used with the app.  I want to allow any of the family iphones to be able to be the remote and not have to count on having the actual remotes. 

I have searched the net and this community, but cannot find anything like my request,  Any help would be appreciated.

Mclaptop

Did you remember to name them uniquely?

Thanks for the quick reply.  No manuals to understand the flexibility and functions.  Renamed and now working.  appreciate it.