In service desk Plus while performing Domain Scan e.g PC1, 2, 3, 4,5,6,8 if we scan PC7 it will appear and when we scan PC9 PC7 get disappeared in Service Tag field display 00, System Serial Number, 123456789000

 

In forums.manage engine.com we found that the issue is related to Service tag or IP address how to fix this problem or to scan with out service tag. 

(Service Desk Plus  Version : 7.6.0 Build 7604 )