can't connect windows server 2003 with domain account
I have installed an agent on windows 2003 server successfully but I cannot add domain account as a preferred credential to connect to windows. My OMS is 11g running on RHEL 5 and I am trying to deploy sql server plugin to windows 2003 server. I could deploy the plugin with the same domain account to windows 2008 without any error but for some reason, but I cannot use the same domain account on windows 2003. This domain account is part of administrator group on both 2003 & 2008 servers so I don't know what I need to do different for 2003. Please help me. Thank you.