Troubleshoot Form: OpenLM Server Item 003 (Unable to connect to FLEXlm license server error: -96,7:11004 “Comm. error”)


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Title Unable to connect to FLEXlm license server
Category OpenLM Configuration Form
Date Oct 24, 2012
Handled by
Relevant Links
Applies to license managers FLEXlm, FLEXera FLEXnet,
Applies to license model Floating licenses, Network licenses, Concurrent licenses
Symptoms No activity reported on EasyAdmin for a specific FlexLM license server
Observed during investigation Clicking the “Check” button for one of the FlexLM license servers on the OpenLM Configuration Form resulted in an error
Trouble shoot process Check License server connectivity configuration.
Solution Found (Found/Pending/Known Issue)
Other steps for troubleshooting


The customer complained that he “Couldn’t connect to the FLEXlm license server”. Attempting to connect to the license server resulted in the following message box appearing on his screen:

lmgrd is not running: License server machine is down or not responding. (-96,7:11004 “Comm. error”)

Troubleshoot process

1. Make sure the license manager machine is up and that you could check out licenses from it.


2. Make sure that the hostname , Port number, License Manager type and timezone are configured correctly in the OpenLM server configuration tool. Also, please review this Troubleshoot guide.

3. Check the connectivity between the OpenLM server machine and the license server (using ping or telnet).

4.  Make sure that any security components (Firewall) are not blocking communication on both ends. The OpenLM server uses ports 7012, 7014, 7016, 7017 and 7019. The OpenLM server’s communication with the License server relies on port 7014.

Make sure that the port is open:

  • Try disabling the firewall temporarily.
  • Enter “Control Panel”→“System and Security”→“Windows Firewall”→ Advanced settings”.
  • If the port isn’t defined under the “‘Inbound Rules” open the port by adding a New Rule using the “New Rule” button located on the lower right side of the screen as depicted below:

5. The OpenLM Broker may bypass such communication issues. Install the OpenLM Broker on the license server machine. See this application note for more information: Application Note 1004: OpenLM Broker quick start guide.

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