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Event ID: 1126 Source: Microsoft-Windows-ActiveDirectory_DomainService

Level
Description
Unable to establish connection with global catalog.

Additional Data
Error value:
1355 The specified domain either does not exist or could not be contacted.
Comments
 
According to T756476 you have to verify that the domain controller can connect to a global catalog server.

See also the link to eventid 1126 from NTDS General.

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