Windows guests in RHEV intermittently lose their trust to Active Directory

Issue

• Why are my Windows guests occasionally losing their trust to Active Directory?
• I have virtual machines that display the following error during logon:
  
• The following is displayed in the Windows system log:

Error,4/27/2012 11:35:56 AM,NETLOGON,3210,None,"This computer could not authenticate with
\\adserver.corp.example.com, a Windows domain controller for domain CORP, and therefore this
computer might deny logon requests. This inability to authenticate might be caused by another
computer on the same network using the same name or the password for this computer account is
not recognized. If this message appears again, contact your system administrator."