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License server machine is down or not responding. (-96,491)

License server machine is down or not responding. (-96,491)


This article will explain how to overcome the (-96,491) error when using the Flexnet Publisher v11.13.1 toolkit.


When trying to connect to a license server with a client built with the Flexnet Publisher v11.13.1 toolkit, and there is latency between the two, then a "License server machine is down or not responding. (-96,491)" error may be thrown.


This is caused due the changes with the FLEXLM_TIMEOUT that where introduced in v11.13.1. The timeout default value for FLEXLM_TIMEOUT was set to 100,000 (0.1 second). This caused a -96,491 error when there was latency within a network.


To increase the FLEXLM_TIMEOUT value to greater than 100,000 microseconds (0.1 second), for example 1500000 microseconds (1.5 second).
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Last update:
‎Nov 14, 2018 10:27 PM
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