Mac OS ReadyCloud showing offline

Hello

 

Totally new to this, might be a dumb question.

 

I own 3 ios devices, an imac, and several windows machines.

 

I have a USB3 HDD connected to my R7000 Nighthawk.

 

I have registered and enabled the readycloud in the router setup page, and downloaded readycloud app on all ios devices.  I enabled media backup on all 3 devices, and it worked perfectly.  They each have their own media backup folder for easy identification.

 

Now, I want to close the loop by connecting my iMac into the mix.  I downloaded the software, it installed, but it shows as offline.

 

Furthermore, will I be able to have the itunes on my imac pickup pictures from these folders?

 

Thanks.