The following ArcGIS License Manager error is displayed when using ArcMap:"Flexlm error -57,17"
ArcMap is losing connectivity to the license manager.
Solution or Workaround
Use the IP address of the license manager in the ArcGIS Desktop Administrator or create a static TCP port for the license manager.
- Obtain the IP address of the computer where the ArcGIS License Manager is installed.
- Start the ArcGIS Desktop Administrator by navigating to Start > Programs > ArcGIS > Desktop Administrator.
- Select the License Manager folder and click the Change button on the right-hand side.
- Type in the IP address of the computer where the license manager is installed into the License Manager dialog box. Click OK.
- If that does not resolve the problem, create a static TCP port for the license manager. See the link in the Related Information section before for information on creating a static TCP port.