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This article provides brief information and steps to resolve the issue when the Netflow Interface Details charts do not load for certain interfaces. The charts will only show the spinning loading wheel icon. No errors or time outs are displayed.
NTA 4.x and later
The issue is caused when there is no value in bandwidth statement for the interfaces in NPM. This is caused due to the device not responding when performing an SNMP discovery.
Now the correct Bandwidth is shown in the NPM Interface Details page.
6. Go to the Netflow Interface Details page for the Interface in question and charts should not load without issues.