If you are installing networked licenses, you must check to see that you have the correct version of the license server software.
Ensure that you installed the Licensing component when you installed Maya 2009. This component is installed by default on Windows and Mac OS X. You need to explicitly install this component on Linux.
To verify license server version
Do one of the following, depending on your platform:
/usr/aw/COM/etc/lmgrd -v
You should have version 11.5 of the FlexLM software installed. If not, you must update the license software on the license server from the Maya installation distribution.