With the release of ArcGIS 10.4 comes a brand new geoprocessing tool that allows you to update your enterprise geodatabase license efficiently through ArcGIS for Desktop. The
Update Enterprise Geodatabase License tool is now included in the
Geodatabase Administration toolset in the Data Management toolbox.
In previous versions, you may have attempted to connect to your enterprise geodatabase, only to receive an invalid or missing ArcGIS Server license error, such as the following:
In ArcGIS 10.4, you can use the new geoprocessing tool that allows you to update your license file, and you can even incorporate the tool into a Python script to automate the process of updating your file, as long as you have a valid license file on hand. You can even schedule the Python script to run at certain intervals using your operating system's scheduling application.
Check out the help documentation on this new tool, and I'll throw in the link to obtain a valid Authorization File tool, just for fun:
Julia L. - Geodata Support Analyst