Where can we download the most update ESRI License Manager?
Look at this article:
How To: Download, extract, uninstall, install, and authorize ArcGIS License Manager 10
go to "My Esri" (top right login if necessary), My Organizations, then the Downloads link, then ArcMap 10.5 and finally when you are inthere look for
You can download the software from My Esri , as mentioned by Dan Patterson, only if your organization is under Esri maintenance, and you should login to My Esri from your organizational account.
Else please contact your local Esri distributor to get a copy of the desired setup.
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