"Networking Error: Server(11010): Server (...) not responding." when launching Autodesk products

Autodesk Support

Feb 6, 2025


Products and versions covered


Issue:

When trying to reach the license server, the following message appears when launching Autodesk products:


FlexNet License Manager

Networking Error(11010): Server ("IP Address or Hostname") not responding. Please
contact System Administrator for assistance.
 

Networking Error(11010): Server (<ip address OR hostname>) not responding. Please contact System Administrator for assistance.

Causes:

  • Communication between the server and client machine needs further specification.
  • Autodesk Network License Manager not running on Local Service.

Solution:

To resolve this, follow the following steps:

Cannot ping a license server machine

  • Check with your network administrator about configuring the client machine and server to be able to ping each other. 
  • LM Tools can be installed on a client PC to verify if it can read the license file and not just ping the server to gain more insight in to the communication situation. Refer to: How to query LMTOOLS network license status from nonhosting machine.

Communication between the server and client machine needs further specification

Specify the license server in the ADSKFLEX_LICENSE_FILE system variable: 

  1. Go to Start > Control Panel > System and Security > System.
  2. Select Advanced system settings.
  3. On the System Properties dialog, click Environment Variables.
  4. Under System Variables, click New.
  5. Enter ADSKFLEX_LICENSE_FILE for the variable name and 2080@SERVER_NAME _OR _IP for the variable value.

Set a timeout variable

Specify the timeout system variable FLEXLM_TIMEOUT with a value of at least 6 000 000. (Try to increase it if the license is still not taken).

Others potential solutions:

  • Ensure that the License service is Up and Running and the LMTools version is up-to-date to serve the latest Autodesk Programs.
  • Check that the Autodesk Network License Manager Service is running on Local Service in the Service Tab in the Task Manager.
  • Check AntiVirus or Firewall programs if blocking a program or License Ports. 

Products:

All Desktop Products;


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