ARCGIS 10 License server error -15,570

Discussion created by Joseph_Cornellisson_DOI on Mar 30, 2011
Latest reply on Jan 22, 2013 by xrismpou
Occasionally when I or one of the users trie to start ARC the following message shows up:

Cannot connect to license server system
THe license server manager (lmgrd) has not been started yet,
the worong port@host of license file is being used, or the
port or hostname in the license file has been changed.
Feature: ARC/INFO
Server Name: Lakewood01
License path: @Lakewood01
Flexnet Licensing error: -15,570

I'm running server 2008, Window XP sp3, Arc 10.  However, the server is running, the LM is running, etc. Everything appears to check out OK

If you close the error and try to start Arc again - it usually comes up.  Sometimes the error occurs two or three times but Arc eventually does start.

Is it a timing issue in the network?  on the server?? Is there an environment variable or setting I can change?  It gets annoying.