SOLVED - here's how - Spark "System needs to be updated' Download Failed....?

[MountainGuy]

Have you tried connecting your phantoms to your router with ethernet cables?

Thanks everyone, will try all your approaches this evening. 

Yesgrey, do you mean attach the phantoms directly to router AND also dialog?  Or just the phantoms directly to the router without dialog? 

Is the update primarily for the Phantom? 

Thanks!
MtnGuy