IP address restriction feature is available only for Team Plan, Business Plan, and Enterprise Plan.
The IP address restriction function is automatically turned "on" when you add an IP address.
Therefore, when you want to restrict IP addresses, please check the IP address you are accessing first, and register it first.
① Click the icon in the upper right corner of the screen > Select "Team Management
② Select "IP Restrictions"
③ In the red box, enter the IP address to be allowed access.