> Source: [sk165690](https://support.checkpoint.com/results/sk/sk165690)

# sk165690 - After changing DC authentication from NTLM1 to NTLM2 ,  Identity Collector not able to connect to DC

| Property | Value |
|----------|-------|
| Solution ID | sk165690 |
| Date Created | 2020-03-23 |
| Last Modified | 2022-06-29 |
| Technical Level | Advanced |
| OS | Windows |

## Symptoms

- * After changing DC authentication from NTLM1 to NTLM2 , Identity Collector not able to connect to DC.
* On DC error:  
  Failure Information:  
  Failure Reason: Unknown user name or bad password.  
  Status: 0xc000006d  
  Sub Status: 0xc000006a

## Solution

This solution requires authentication. Please log in to view the full solution.

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