Change the name of the machine listed after ‘SERVER’ to match the PC's new hostname: If the floating license file cannot be found, request a copy by visiting, and clicking ‘request a new license file’, or by contacting Esri Customer Service at 88.ģ) Locate the line near the beginning of the license which reads ‘SERVER’. This file is usually named with the same number as the concurrent use license dongle (hardware key), which always begins with the numbers ‘371’ and has an extension of. Otherwise, license errors are received.ġ) Locate a copy of the Esri concurrent use (floating) license file. If the name of the computer that ArcGIS License Manager is installed on is changed, the ArcGIS License Manager will need to be reconfigured to use that new computer name. Instructions provided describe how to reconfigure the ArcGIS License Manager after the license server hostname is changed.