Last Updated: 08/05/2026
◾️Connection Speed
The recommended connection speed on the robot side is 10 Mbps or higher.
For the operator side, we recommend using a fixed broadband connection or Wi-Fi environment with 20 Mbps or higher.
⚠️Important Notice
If you are using tethering, mobile Wi-Fi routers, data cards, or 4G LTE/5G, you may reach the mobile data usage limit during use. Please check the plans of your respective carrier.
◾️Communication Requirements (SkyWay New Method)
Please configure your firewall or proxy server to allow the following communications.
| Category | Destination Domain (FQDN) | Port Number | Protocol | Purpose |
| Control/Signaling | *.skyway.ntt.com | 443 / TCP | HTTPS, WSS | Authentication, room management, signaling |
| STUN | *.skyway.ntt.com | 443/UDP, 443/TCP | STUN | Communication path resolution |
| TURN (Relay) | *.skyway.ntt.com | 443/UDP, 15000-65535/UDP 443/TCP | – | Media data relay |
| P2P Communication | Between each client device | 1024–65535/UDP | – | Direct communication between devices |
| ugo Portal Communication | gateway.ugo.works | 443/TCP | HTTPS, WSS | Communication with Portal |
In addition to the above, please add the following domains related to our Platform to your whitelist.
- ugo-portal.com
- api.ugo.systems
■Notes When Configuring Network Settings
Regarding Restrictions by IP Address:
- Since SkyWay server IP addresses change dynamically, if you perform filtering, you need to configure filtering by domain name (FQDN). Filtering by specifying IP addresses is not possible, so please be careful.
Proxy Server and TLS Inspection:
- Due to the nature of WebRTC (real-time communication), the following settings are recommended: ・Proxy exclusion: Add .skyway.ntt.com to the proxy server bypass list. ・Disable SSL/TLS inspection: To prevent communication delays or disconnections, disable packet rewriting or inspection for the above domains.
Priority of UDP Communication:
- WebRTC preferentially uses UDP communication. When using the TURN server, fallback to TCP 443 occurs if UDP port 443 is blocked. TCP communication may increase delays in video and audio due to its nature. Please allow UDP communication as much as possible.