Rdns not wanting to turn green

I have set the Rdns correctly with the VPS provider however it’s still red and it contradicts itself.

I have reset the VPS Rdns back to defualt and then back again. but it is still red.

The is the error in the status page.

:heavy_multiplication_x:

Your box’s reverse DNS is currently box.bmg7.com (IPv4) and [Not Set] (IPv6), but it should be box.bmg7.com. Your ISP or cloud provider will have instructions on setting up reverse DNS for your box.

Might be that you also need to set reverse dns on the ipv6 address your server is using.

Yep, That fixed it, Thank you.