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Always show "down" status for NIC WMI sensor while large network traffic

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I am using Windows Network Card sensor to monitor NICs. I found PRTG allways show "down" status for NIC WMI sensor for some servers while large network traffic. Actually, the traffic is just 1/3 of max. of NIC's full load. However, other sensors (CPU, Memory, etc.) on that server are showing normal.

Any setting can make it better and at least not show "down" status since it causing some fault alarm.

Thanks.

down nic wmi

Created on Jan 22, 2014 1:38:21 AM



4 Replies

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Which exact errors do you then get? Could you please send some screenshots showing the exact error messages on the sensors (from the "Overview"-Tab)? If the sensors are not in error-state right now, you can also check the "Log"-Tab of the sensor, to view previous error-messages.

Created on Jan 22, 2014 2:01:27 PM by Greg Campion [Paessler Support]



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Sorry to reply late.

The message in the log is :

Status: Message: Fallback to WMI The wait operation timed out (Performance Counter error 0x102)

Thanks.

Created on Jan 24, 2014 7:56:28 AM



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Log of another case is : Type: Windows Network Card Status : Down Message : OK

I have a captured picture but I don't know how to attached here. Can I attached here? Thanks.

Created on Jan 27, 2014 1:57:40 AM



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When these cards are showing these error messages what is happening is that the network traffic is so large that the server cannot respond in time to the WMI request. You can try increasing the timeout for these sensors in the Windows Compatibility settings at the device level or increase the scanning interval which will also increase the timeout. Other than that though, there isn't much you can do to force Windows to give more priority to the WMI system.

Created on Jan 27, 2014 2:30:09 PM by Greg Campion [Paessler Support]




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