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Event ID: 1129 Source: Microsoft-Windows-GroupPolicy

Level
Description
The processing of Group Policy failed because of lack of network connectivity to a domain controller. This may be a transient condition. A success message would be generated once the machine gets connected to the domain controller and Group Policy has succesfully processed. If you do not see a success message for several hours then contact your administrator.
Comments
 
According to EV100578 (Windows 7 machines fail to apply software installation group policy on startup), this problem seems to be caused by a delay in initializing network and locating domain controllers. To resolve the issue we need to give system more time to initiate network before proceeding with the logon process. See the article for more details.
Group Policy processing requires network connectivity to one or more domain controllers. The Group Policy service reads information from Active Directory and the sysvol share located on a domain controller. The absence of network connectivity prevents Group Policy from applying to the user or computer. See T727335 for information on solving this problem.

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