HomeTroubleshootingAll Products: Startup"FLEXnet returned error code –12"

2.55. "FLEXnet returned error code –12"

Applies to: Palisade Concurrent Network software, releases 6.x/7.x

When I try to launch my software, I get this message:

Authorization failure.
FLEXnet returned error code –12: Invalid returned data from license server system.

This is probably a port-number conflict, which must be resolved by your server administrator.

On the server, the simplest setup is to set both the LMGRD port number and the vendor daemon port number as dynamic (unspecified). It's also okay to specify one but leave the other as dynamic, or to specify both. If you do specify both, they must be different.

Important: If you have FLEXnet products from multiple vendors, either the LMGRD port for all of them (including Palisade) must be dynamic or unspecified, or you must specify LMGRD ports for all of them and you must specify a different LMGRD port for each application (including Palisade). Vendor daemon ports can be mixed between specified and unspecified, but you can't specify the same vendor daemon port for two FLEXnet applications.

If you do leave the lmgrd ports as unspecified, make sure that no non-FLEXnet software is using any of ports 27000–27009.

Last edited: 2017-03-17

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