Syno Manager works the same whether you are next to your NAS or on the other side of the world. What changes is how the connection gets there, and each route has different trade-offs worth knowing.

| Route | Setup | Speed | Exposes anything? |
|---|---|---|---|
| QuickConnect | Enable it in DSM and enter the ID. Nothing on the router. | Slower - traffic goes via Synology's relay. | Nothing. No open ports on your side. |
| Custom domain / DDNS | A hostname pointing at your address, plus a port forward on the router. | Direct, so as fast as your upload allows. | Yes - the DSM port is reachable from the internet. |
| VPN | A VPN server on your router or NAS, and a client on the phone. | Direct once connected. | Only the VPN port. Everything else stays private. |
The app does not have a reduced feature set when you are away. The two things that need a moment's thought are camera live view and waking a NAS that is off.
| Feature | Away from home |
|---|---|
| Monitoring - system, storage, network, health | Works on any route. |
| Docker, packages, services, tasks, users | Works on any route. |
| Synology Photos - thumbnails and full images | Works, relay included. |
| File Station and Drive downloads | Works, relay included. |
| Backups - status and Run Now | Works on any route. |
| Waking another device through the NAS | Works, as long as the NAS itself is on. |
| Camera live view | Turn on Tunnel camera live view through DSM port. Without it, live view wants RTSP on port 554, which is usually not reachable from outside. See how live view connects. |
| Waking the NAS itself while it is off | Needs a VPN or a router Wake-on-LAN forward. QuickConnect cannot reach a NAS that is off. See Wake-on-LAN. |
One entry by local IP, one by QuickConnect. Name them so you can tell them apart - "NAS (home)" and "NAS (away)".
Set Launch Behavior to Last NAS I used and the app will keep whichever you were on.