Requests Using Internet URL fail on LAN Access

[scoobybri]

I could never find an answer to this problem so I just reinstalled Nextcloud
using Apache instead on Nginx and it works flawlessly. Not sure what could
have caused Nginx to not work properly in this application but after trying
for a week and not getting an answer from the Nginx community, I had to go
with what I knew worked....Apache.

Posted at Nginx Forum: https://forum.nginx.org/read.php?2,271791,271876#msg-271876