What if the hotel doesn't have a network cable interface?

You can connect to a wireless network without an interface, as follows:

1. After plugging in the wireless router, don't connect the cat's network cable yet. Connect the computer to any LAN port of the wireless router.

2. Enter the IP address of the router in the address bar of the browser (there is one on the label behind the router), and enter the login user name and password to enter the setup page.

3. Set according to dynamic IP mode.

4. Set the SSID, encryption method and password, save and restart;

5. After setup, connect the input network cable to the WAN port of the wireless router.