Window 2008 Re-join domain failed

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http://serverfault.com – I faced below issue. I have two windows 2008 servers, which left domain for a long time. So I try to re-join it to previous domain. One servers could re-join successful, but another one faced that: The following error occurred attempting to join the domain "my.domain"; Logon Failure: The target account name is incorrect. I'm sure I use the right account, but still can't join to domain. Please give me some suggestion to help me solve it. Really appreciated you any help. Best Regards Siyang (HowTos)