You can unassign an IP Address from a particular user at any time:
- Go to your Control Panel's Settings menu.
- Click the Networks icon.
- Click the name (label) of the network from which you wish unassign an IP address.
- On the page that appears, you will see the list of IP addresses added to this network. Tick the box or drag the cursor around the required address or several addresses to select them. The Filter at the top of the page will simplify the selection process.
- To unassign, click Unassign IP addresses.