Environment Details
Standard Notes Deployment: Self-hosted using Docker Compose
Configuration Changes: Only changed the API port from 3000 to 3900 due to a conflict with another container.
Docker Host IP: 192.168.1.103
Reverse Proxy (Nginx) Mappings
192.168.1.103:3900 → api.myserver.com:443
192.168.1.103:3125 → fileapi.myserver.com:443
When accessing api.myserver.com externally, it correctly displays:
Welcome to the Standard Notes server infrastructure.
accessing fileapi.myserver.com externally results in:
Not Found
Troubleshooting Attempts
Checked .env configuration, tried both:
PUBLIC_FILES_SERVER_URL=https://fileapi.myserver.com/
and
PUBLIC_FILES_SERVER_URL=http://192.168.1.103:3125/
Neither resolved the issue.
Restarted containers after each change:
docker-compose down && docker-compose up -d
Verified folder permission:
chmod -R 777 uploads/
Frontend App:
Using Windows App v3.195.25 and Web app
Sync Server: https://api.myserver.com/
Notes can be synced between Windows App and Web app
May I have any suggest what might be misconfigured or missing in my setup? Any guidance would be appreciated.

Environment Details
Standard Notes Deployment: Self-hosted using Docker Compose
Configuration Changes: Only changed the API port from 3000 to 3900 due to a conflict with another container.
Docker Host IP: 192.168.1.103
Reverse Proxy (Nginx) Mappings
192.168.1.103:3900 → api.myserver.com:443
192.168.1.103:3125 → fileapi.myserver.com:443
When accessing api.myserver.com externally, it correctly displays:
Welcome to the Standard Notes server infrastructure.
accessing fileapi.myserver.com externally results in:
Not Found
Troubleshooting Attempts
Checked .env configuration, tried both:
PUBLIC_FILES_SERVER_URL=https://fileapi.myserver.com/
and
PUBLIC_FILES_SERVER_URL=http://192.168.1.103:3125/
Neither resolved the issue.
Restarted containers after each change:
docker-compose down && docker-compose up -d
Verified folder permission:
chmod -R 777 uploads/
Frontend App:
Using Windows App v3.195.25 and Web app
Sync Server: https://api.myserver.com/
Notes can be synced between Windows App and Web app
May I have any suggest what might be misconfigured or missing in my setup? Any guidance would be appreciated.