Nighthawk MR60 two satellites

NETGEAR Nighthawk Whole Home Mesh WiFi 6 System (MK62) - AX1800 router with 1 satellite extender

I purchased A Netgear nighthawk whole home mesh wifi 6 system and all went fairly smoothly with the installation except for one chromecast. I have tried to reset the router, reset the chromecast to factor settings to no avail. When I attempt to reinstall the chromecast I get a message at the end of the process that states, " Your Chromecast was setup successfully but can't be found. Make sure your mobile device and chromecast are on the same wifi network." in another paragraph it states to "Turn off AP isolatio - if AP isolation is enabled on your wifi router you will need to disable it." I was not been able to figure this out and why I am here in hopes something can point me in the right direction.