Generally, hotels have network cables. After connecting, you can access the Internet by automatically obtaining an IP. I wonder if the hotel manager can see which room is connected to the internet?

As you can see, 1 Upstairs is dhcp. 2. On the router switch, you can see whether the port light is on, indicating that the computer and the network cable are connected normally. You can check the traffic of an ip through p2p software. However, the most effective thing is to see whether the LAN port of the router switch is open, and then determine it by monitoring the traffic of the port by the router.