Orbi RBR850 not connecting to Cox Router

I have a Orbi RBR850 and it has been connecting to the Cox router just fine until yesterday.  Started with intermittent loss of connection to the internet.,  Today, it no longer connects to the Internet.  Tried rebooting everything multiple times with no success.  If we bypass the Orbi and connect straight to the Cox router, it works just fine.  I have read online of people having similar issues after Cox outages and/or updates.  We're in Orange County, CA.  Has anyone successfully solved this issue?

Thanks