R9000 unable to see and manage in my ReadyCLOUD web page.

Hello. I own an R7000, an R8500 and an R9000. The R7000 now uses it as a wifi bridge in my home network, but a few years ago it was my router with which I registered in MyNetgear and ReadyCLOUD. I had no problem to remotely access via ReadyCLOUD either to the USB stick inserted in the R7000 or to the nas RN104 of my network. Then I bought and installed the R8500 instead of the R7000 and even then I never had any problems with ReadyCLOUD. The problems started when I bought the R9000 and installed it instead of the R8500. Through ReadyCLOUD I can see and manage the RN104 nas but I can not see the R9000 router. I went from within the router setup page to cancel the subscription to ReadyCLOUD and repeat it but without success. I have always updated the firmware of the R9000 like that of the nas RN104 and of the R7000 bridge. What can I do to get back to seeing my router from ReadyCLOUD?