After upgrade from Tridion 5.3 to Tridion 2011 SP1, when we publish any page it is getting failed with error "You do not have permission to perform this action" Preview of pages is working fine. We tried to check exactly in which stage issue is coming but after double click on failed transaction it just shows the error message under "Publishing Process Details" Tab. I am Administrator in Tridion CMS. Is it related to configuration of cd_deployer_conf or cd_storage_conf.?
It seems that issue is related to user access getting below error message on CME server in cd_Transport.log An unexpected error occurred while polling: IP:PORT/httpupload.aspx reason: Unauthorized
In event log on CME getting below error : You do not have permission to perform this action. Component: Tridion.ContentManager.Publishing Errorcode: 0 User: NT AUTHORITY\SYSTEM