I can't solve this issue. I tried everything I found over the web. I first tried configuring my nginx.conf following the example on codex with no success. https://codex.wordpress.org/Nginx
I found that many users encounter this issue but the most popular fix is this:
location / {
try_files $uri $uri/ /index.php?$args;
}
I still get 404 for all pages. This only happens if I don't use the Plain setting in permalinks structure.
Any ideas on how can I fix this? Thank you!