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SSPI handshake failed with error code 0x80090304 while establishing a connection with integrated security

I received a phone call from the ETL manager  - with the following message in the SQL Server Logs.

 SSPI handshake failed with error code 0x80090304 while establishing a connection with integrated security; the connection has been closed. [CLIENT: 10.111.111.21]

 The causes I’ve seen in the past are:

1)Connection problems between the server and domain controllers

2)Insufficient permissions to AD

3)Infrequent occurrence points to SQL Server losing connectivity with the Domain Controller.

For example, in the process of a DC failover, network issues, heavy load

Source:Jack Vamvas (http://www.sqlserver-dba.com)


Author: Jack Vamvas (http://www.sqlserver-dba.com)

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