Emby refused connection

Hi, I have an Asustor AS1004T v2 and I was able to installed the Emby Server from App Central and it was working fine for awhile. I then had to reconfigure my drives and recreate my volumes. But after I reinstalled the Emby server I got the error 192.168.0.XX refused to connect. I removed and reinstalled the app and I also tried the beta version for this NAS and it still giving me the same error. Please let me know what I can do to troubleshoot this? Thanks

*updated 2022-03-04 for Asustor ADM 4.xxx, and provided a more detailed process with additional confirmation steps* When reinstalling Emby server on my Asustor 5304, I had to complete these steps (via SSH terminal session to my NAS box) after uninstalling Emby (from AppCentral) and before reinstalling Emby: Connect a teminal session via SSH to your Ausutor, login with an account that has admin permissions to your NAS - not an emby account or the emby user (see post below in this thr