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Home > Success Center > Netflow Traffic Analyzer (NTA) > NTA - Knowledgebase Articles > CBQoS chart is not rendering data

CBQoS chart is not rendering data


CBQoS chart does not render data to be displayed even if the timestamp in the NetFlow sources charts updates.


NTA 4.0 and later


The issue is caused by SNMPv1 being set on the device. 


  1. Click Settings > Manage Nodes.
  2. Search for the node and select Edit. 
  3. Set SNMPv1 to SNMPv2c.


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