Connect your NAS to the T-Mobile gateway via Ethernet to set it up on your local network. Because T-Mobile Home Internet normally doesn't permit port forwarding because of CG-NAT, you will need to use a VPN (like Tailscale) or a cloud/reverse proxy service (like Synology QuickConnect) in order to access it remotely.
To set up NAS on T-Mobile Home Internet, connect your NAS to the router via Ethernet, assign a static IP, enable port forwarding in the T-Mobile app, and configure remote access using DDNS or VPN for secure file sharing.
