> Source: [sk91040](https://support.checkpoint.com/results/sk/sk91040)

# sk91040 - How to use the "wbemtest" tool if the "adlog a dc" command returns "bad credentials or firewall blocks DCOM traffic 0"

| Property | Value |
|----------|-------|
| Solution ID | sk91040 |
| Date Created | 2013-01-08 |
| Last Modified | 2022-10-26 |
| Technical Level | Advanced |
| Products | Security Gateway |
| Versions | R81.10 (EOS), R81 (EOS) |
| OS | Gaia |

## Symptoms

- Output of the "`adlog a dc`" command on the Identity Awareness Gateway shows "`bad credentials or firewall blocks DCOM traffic 0`".

*Example*:


```

[Expert@HostName:0]# adlog a dc
MyDomain.com: 172.16.10.1: has connection 42769
MyDomain.com: 172.16.10.2: has connection 42599
MyDomain.com: 172.16.10.3: has connection 20428
MyDomain.com: 172.16.10.4: has connection 20898
MyDomain.com: 172.16.10.5: bad credentials or firewall blocks DCOM traffic 0
MyDomain.com: 172.16.10.6: bad credentials or firewall blocks DCOM traffic 0
MyDomain.com: 172.16.10.7: has connection 58206
MyDomain.com: 172.16.11.8: has connection 769
```

## Solution

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