last logon reporting as "0" when user has logged on

last logon reporting as "0" when user has logged on

I have done a new install on a new machine of  build 5210 and now upgraded to 5220
The real last logon is reporting as 0 when a  user has logged on ?
 
Disabled users are reporting only 24 users when we know there are at least 100
 
It used to work prior to changing server and build
 
 

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