Hi @Douglasmaurer ,
I can’t see anything wrong with your settings. I had a similar error message from HQP recently using the Linux Desktop version. After restarting my microRendu HQP was unable to find it as an NAA backend.
I was able to get HQP to see the microRendu by changing the NAA backend to IP6, saving the settings and then changing it back again.
In this recent thread Jussi said similar behaviour could be associated with allowing DHCP to allocate an IP for HQP and that it is best to use a fixed IP address for HQP in the server.