A value of 0 will not work, but a value of 1 will.
Could you ensure that:
- The "1" value is correctly submitted. There is currently a bug preventing changes in "days" settings from taking hold unless you uncheck and then recheck the cleanup option.
- You restart your Lansweeper service. Cleanup actions are performed when the Lansweeper service is started and subsequently every 24 hours. If you wish to immediately apply setting changes you've made, restart your service.
It may take a while for all the information to be deleted.