IP's are not released

• Running a daily job for Ping Sweeps. When an IP address is no longer in use it still shows as in use on device42. 
• To release the IPs and show as available
• You can go to Tools > Auto Clean Rules
• Click on Add auto clean rule
• Name the rule
• Select IP as the object type
• Select number of days
• Click on the checkbox “Clear device/mac and change status to available.
• Save 

Please refer to these articles for more information on this topic:

https://docs.device42.com/tools/auto-clean-feature/