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Home > Success Center > Network Performance Monitor (NPM) > Nodes appear red

Nodes appear red

Created by Alexander Aguilar, last modified by Su-Lyn Rosenberry on Dec 12, 2016

Views: 11 Votes: 0 Revisions: 9


This article provides brief information on nodes appearing red. You can ping nodes from your workstation but not from the Orion server.



All NPM versions



The issue is caused by an enabled firewall.


Disable any firewall or open ports on the firewall. See Port requirements.




Last modified
15:17, 12 Dec 2016