NextDNS CLI Synology

Hi,

I have installed NextDNS CLI on my DS918+ and setup my Eero to use the NAS IP as its DNS resolvers (I am using the DCHP functionality of the Eero system). It works, however, the names of the clients are not recognised in the my.nextdns logs. I have tried modifying the hosts file at /etc/hosts on the NAS but to no avail.

Any idea how to fix this?