Hello !
Did you install you licence on your License Administrator ?
Start your License Administrator and please check if your concurrent license is enabled.
It appears that if you seek a concurrent license, no server is defined to search a license on.
'HOSTNAME: NOT_SET'
'LICENSE PATH: @NOT_SET'
How do i start my license administrator to install the license?
You have a programm called ArcGIS Administrator installed with ArcGIS for Desktop Suite.
Please see >there<.
Lindsey,
Do you know whether your ArcGIS for Desktop license is a Single Use seat or is actually a Concurrent/Floating license pool seat?
Only the later requires services of the ArcGIS License Manager.
Your seat is presently set to be a concurrent use license seat--and the error -96, is simply showing that no license server has been identified or can be found.
If you instead should authorize and use a Single Use license--the changes are made from the ArcGIS Administrator -> Desktop panel. Make a selection of the correct radio button for the type of license you have. The 90-day trials would be Advanced (ArcInfo) Single Use. The License Manager is not needed and if installed can be uninstalled.
Post back if that is not clear.
Stuart