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Home > Success Center > Server & Application Monitor (SAM) > Nodes in Unknown or Down status

Nodes in Unknown or Down status

Overview

This article describes the issue when a node appears to have a status of Unknown or Down despite being able to ping the device.

Environment

SAM version 6.1 or later.

Cause

This issue occurs when the node is using SNMP instead of ICMP to poll the status of the system and SNMP is not working correctly.

Resolution

  1. Go to Settings > Manage Nodes.
  2. Select the node that shows an Unknown or Down status, and click List Resources. 
  3. Under Status & Response Time, select "ICMP" and click Submit.  If ICMP was already selected, select "SNMP" and then click Submit. Then go back to List Resources, select "ICMP", and click Submit.

Note: If these steps did not resolve the issue, try deleting and then recreating the node in question. 

 

  4. check the windows firewall for "file and print sharing, (echo-request - ICMPv4)" verify this is enabled.

 

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