Microsoft-Windows-GroupPolicy Event ID 1006 .
ErrorCode 49. ... Error code 49 (Invalid credentials)
Sure fix of this issue is to check your HOST File entry in c:\windows\system32\drivers\etc
Cause: cluttered host file & entries of AD DC in it also check for Server IP Entry
Resolution: Remove AD DC Entries from HOST FILE & run GPUPDATE - Issue Fixed
Log Name: System
Source: Microsoft-Windows-GroupPolicy
Date: 12/01/2011 11:51:40 AM
Event ID: 1006
Task Category: None
Level: Error
Keywords:
User: SYSTEM
Computer: server.local
Description:
The processing of Group Policy failed. Windows could not authenticate to the Active Directory service on a domain controller. (LDAP Bind function call failed). Look in the details tab for error code and description.