DNS over TLS doesn't work on guest

When I set up to use NextDNS (DNS over TLS), it doesn’t work on the guest network, only the main network. How can I enable it for both?

Did you use the same device to test on private wifi and guest wifi? Or different?

Did you device use encrypted dns already? e.g. in windows 10/11 if you use 8.8.8.8 it will encrypt