Discovery Schedules getting canceled - Schedule can only contain 1,048,576 IPs but has more than the required countIssue Discovery Schedules getting canceled - Schedule can only contain 1,048,576 IPs but has more than the required count Steps to reproduce: Configure subnets in IP ranges of discovery schedule counting total more than 1,048,576 IPs and run the discovery schedule. In discovery log following message appears; Schedule can only contain 1,048,576 IPs but has <count> CauseFollowing 'DiscoverySchedule' script include has set limit set for total IP's allowed in discovery schedule to avoid any kind of bottlnecs and discovery performance issues. https://<instancename>.service-now.com/nav_to.do?uri=sys_script_include.do?sys_id=092329440ab30150009e4c93176ef3d0 ResolutionIts advice to split IP ranges in your discovery schedule and keep it always below the specified total IP count.