1. First, the host opens the intelligent management system. At the bottom of the login interface, you can see "local IP" and record this IP address.

2. Secondly, enter cmd in computer operation, enter ipconfig in computer operation, press enter, and check the IPv4 address (that is, the IP address of this cash register).

3. Finally, enter the account password on the host and log in to the smart catering system. After logging in, the "online" status is displayed in the upper left corner of the software. Open the intelligent management system of the slave computer, enter the login interface, click "Settings" in the upper right corner, select the IP address of the host computer you saw in the first step, and then click "Connection Test" on the right.