| Event Id | 1011 |
| Source | NotificationServices |
| Description | An attempt to log in to SQL Server failed. |
| Event Information | According to Microsoft: Cause: This error maps to SQL Server error 18456, which indicates that a given user does not have the appropriate permissions to log in. The event log entry for this error includes the description of the SQL Server error that triggered it, which looks similar to the following: Login failed for user <user_name>.</user_name> User Action : Check that the user name noted in the error message has the appropriate permissions. Enter valid user name and password. |
| Reference Links | An attempt to log in to SQL Server failed |
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