How can I get online when the hotel has only one network cable?

The hotel's network cable can be directly connected to the Internet. You can ask the hotel if it needs a user name and password to access the Internet. If so, you can create a new connection in the local connection. If you don't have to lose, set the computer to never dial the internet. If the hotel is online, there is no need for telephone lines and routers. In fact, the hotel has laid a local area network, just connect it.