cancel
Showing results for 
Show  only  | Search instead for 
Did you mean: 

FLEXLM_TIMEOUT and change in its default value

FLEXLM_TIMEOUT and change in its default value

FLEXLM_TIMEOUT is a windows only environment variable, which Sets the timeout value a FlexEnabled application uses when attempting to connect to a license server.

The substitute for FLEXLM_TIMEOUT would be to use "LM_A_CONN_TIMEOUT" client side attribute which can be used to extend the default FLEXLM_TIMEOUT value for connection to server.

As of FNP-11.17.2 (at the time of writing this KB, the latest available GA toolkit):

This environment variable helps to set the timeout values, are in microseconds, within the range of 200,000 (0.2 seconds) through 20,000,000 (20 seconds). The default value is 3,000,000 microseconds (that is 3 seconds).

Before FNP-11.13.1:

Values are in microseconds, within the range of 0 through 2,147,483,647. The default setting is 100,000 microseconds.

In FNP-11.13.1: (FNP-10695)

Previously, the port@host format required an excessive time (of the order of seconds) to return an error, unlike the @host format. This was because the FLEXLM_TIMEOUT environment variable was inappropriately ignored with the port@host format.

This has now been resolved: for the default FLEXLM_TIMEOUT value of 100,000 (0.1 second), the error for both port@host and @host (when host is
invalid) will be returned in less than a second.

In FNP-11.14.0 (FNP-11480)

FLEXLM_TIMEOUT is a Windows-only environment variable, which sets the timeout value (in microseconds) a FlexEnabled client application uses when attempting to connect to a license server.


Previously, the default value was 100000 (0.1 seconds). Now, the default value is 3000000 (3 seconds), with minimum value 200000 (0.2 seconds) and maximum 20000000 (20 seconds). An issue where timeout errors could inappropriately occur because of network latency between the client and the server (FNP-11480) was fixed through this change.

Note that the time to report a failure when attempting to connect to an invalid host from a Windows client is also governed by the FLEXLM_TIMEOUT value.

Tags (1)
Was this article helpful? Yes No
No ratings
Version history
Last update:
‎Dec 05, 2020 12:12 PM
Updated by:
Contributors