Windows XP Pro can’t connect to domain

I have just installed Windows XP Pro yesterday and tried to get it connected to a domain. The server running the domain is a Windows Server 2008.

Windows XP is able to find it, but once I think it’s going to be successful it get “Logon Error: Usernamd or password incorrect”.

I tried the admin account and I tried the account I created on the windows server, still nothing.