> Source: [sk111598](https://support.checkpoint.com/results/sk/sk111598)

# sk111598 - Anti-Virus / Anti-Bot signatures are not updated on Virtual Systems

| Property | Value |
|----------|-------|
| Solution ID | sk111598 |
| Date Created | 2016-05-22 |
| Last Modified | 2017-04-24 |
| Technical Level | Advanced |
| Products | Security Gateway, Hardware |
| Versions | R82.10, R82, R81.20, Not Version-Specific |
| OS | Gaia |
| Platform | 15000, 3000 |

## Symptoms

- * SmartView Tracker shows the following Anti-Virus logs for Virtual Systems:

  * `
    Type: Control`  
    `
    Update Status: Failed`  
    `
    Description: Update failed. Failed to resolve source DNS name`  
    `
    Product: Anti-Virus`  
    `
    Information: contract_name: Anti Virus`  
    `
    `
  * `
    Type: Control`  
    `
    Update Status: Failed`  
    `
    Description: Update failed. Script failure`  
    `
    Product: Anti-Virus`  
    `
    Information: contract_name: Anti Virus`  
    `
    `
* "`Failed to resolve source DNS name`" error in SmartDashboard during Threat Prevention policy installation.

* Executing the "`/opt/KAV/update.sh XXX.key`" script in the context of Virtual Systems fails with "`Operation result code: 0x00000021. Failed to resolve source DNS name`" error.

* "`cpstat -f update_status antimalware`" command in the context of Virtual Systems fails with:  

  `AV Update status: failed`  
  `
  AV Update description: Update failed. Failed to resolve source DNS name`

## Solution

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