Possible Reasons for VLM "Unable to Start License Server" Error.
Primary Software: Other NI Software>>NI Volume License Manager
Primary Software Version: 2.0
Primary Software Fixed Version: N/A
Secondary Software: N/A
Problem: When I try to start my NI Volume License Manager (NI VLM), I get the error
"Unable to Start License Server." What are the possible causes and potential solutions?
Solution: There are multiple problems that can cause the
"Unable to Start License Server" error. Common causes and solutions include:
- NI VLM runs by default on port 27000. If another license server is using this port, NI VLM will be unable to start. Follow the instructions in KnowledgeBase 34ICSJ9O: Can NI Volume License Manager Run on a Configurable Port? to change the port number NI VLM will use.
- If you have installed software which uses NI License Manager (NILM) on the NI VLM server machine (such as LabVIEW), the debug log may need to be turned on for proper NI VLM functionality. This can be done by opening NI VLM, selecting Options»Preferences..., selecting the Policies tab, and checking the Enable Debug Log checkbox.
- If you are using NI VLM on Windows 2000 there is a known issue when the path to a service's executable contains spaces. See KnowledgeBase 3CTA3K6E: Why Do I Get a Message "Unable to Start Server" when using NI VLM on Windows 2000? for more information and the solution.
- It is possible that NI VLM is unable to load the license file properly, and thus is unable to serve licenses over your network. Try first refreshing NI VLM by going to Options»Refresh, and if that doesn't solve the problem, try reinstalling the license file by going to Options»Install License File. If you are still seeing this behavior, it is possible that another license server is running on your NI VLM server machine. Please see KnowledgeBase 2IK8QGTJ: License Server Unable to Reload Licenses or Update License Server for more information.
Related Links: KnowledgeBase 2IK8QGTJ: License Server Unable to Reload Licenses or Update License Server KnowledgeBase 3CTA3K6E: Why Do I Get a Message "Unable to Start Server" when using NI VLM on Windows 2000? KnowledgeBase 34ICSJ9O: Can NI Volume License Manager Run on a Configurable Port?
Attachments:
Report Date: 10/24/2006
Last Updated: 01/12/2008
Document ID: 42NJBRT3
