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The problem is caused because the scope specified in the single range is greater that the 32K specified as maximum per scan job. This limit can be hit if multiple the IP scope limit if a single sub-sets are range is used within a single scope (or teh the accumulation of scopes also multiple sub-ranges) exceeds this hard limit. The solution is to modify the Scope to include less than 32K IP address range. This may require that additional scan jobs are created to split the original range into smaller sub-ranges. The example below reduces the sub-range scope using the Mask value.
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Finally, edit the ScanJob. Select the updated update scope. Click on the Update button. The scope is now accepted (a green tick is now present on the scope).
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The limit for 32K IPs is accumulated across all scopes assign to a scan job.
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