I have an error showing up in all 21 ESX servers (3 different clusters) using the same VC server and license server. Licensing seem to work though, I can do vmotion and the license usage is counted correctly. But on all servers in /var/log/vmware/vpxa/vpxa.log I get the following message spammed in the log:

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2007-12-03 11:46:31.511 'App' 58162096 info VpxLRO -- BEGIN task-internal-427 -- -- vpxa:setConfig
2007-12-03 11:46:31.545 'App' 58162096 warning ============BEGIN FAILED METHOD CALL DUMP============
2007-12-03 11:46:31.546 'App' 58162096 warning Invoking configureSource on vim.LicenseManager:ha-license-manager
2007-12-03 11:46:31.546 'App' 58162096 warning Arg host:

2007-12-03 11:46:31.546 'App' 58162096 warning Arg licenseSource:
(vim.LicenseManager.LicenseServer) {
dynamicType = unset,
licenseServer = "27000@localhost.localdomain",
}
2007-12-03 11:46:31.546 'App' 58162096 warning Fault Msg: "Unable to change license state as the license server is not available."
2007-12-03 11:46:31.546 'App' 58162096 warning ============END FAILED METHOD CALL DUMP============
2007-12-03 11:46:31.546 'App' 58162096 error VpxaLicMgr Unable to invoke ConfigureSource. Exception vim.fault.LicenseServerUnavailable
2007-12-03 11:46:41.275 'App' 58162096 info VpxLRO -- FINISH task-internal-427 -- -- vpxa:setConfig

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I can't see where the 27000@localhost.localfomain is coming from, its not the one specified via Virtual Center. It seem to be an DNS issue or something but I have no error when changing license server or doing dns lookup from or to ESX and VC. Is there a config file on the ESX where I can find the actual license server value being used? If it for some reason ignores the one set via VC. One post suggested enabling NFS client in firewall but it doesn't help in this case.