I have issue with NPM, some nodes having a down status, however they are up and pingable, I pinged them from the CMD on the solarwinds server and they were pingable, also I pinged them from the solarwinds Engineering tool set and again were pingable. I tried to unmanage the nodes and remanage them with the same results, unmanaging and deleting the nodes then adding them again also still down (red) and the alert was triggered.
I am managing them using ICMP only.
What would cause such behavior??
Thanks in advance.
Solved! Go to Solution.
Are these dynamic or static IP assignments? Are you trying to monitor just with the IP or are you monitoring via a hostname. If these are potentially dynamic, I'd recommend going into Polling Settings and uncheck the option to do reverse DNS lookups. This may help part of the issue. The next thing I would look at would be the Collector Services, and see if a service restart helps with the issue.
Under Settings -> Polling Settings -> Network -> ICMP Data, I see "Solarwinds Status Query" should this be changed to a numerical value ?
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