SNMP Agent not working on all Policy Server

Document ID : KB000109279
Last Modified Date : 14/09/2018
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I am setting up the SNMP Agent on our 4 Policy Servers to monitor them, and it is starting fine, however I get the following error when I try to do a snmpget in 3 of them:
"No Such Instance currently exists at this OID"

I run the following command from CLI:
snmpget -v 2c -c public

The exact same command works from one of the Policy Servers, but not from the others, and I followed the same steps from the documentation in all the servers. Why is that? How can I have all the Policy Servers running the SNMP Agent properly?

When using OneView Monitor, all the SNMP requests must be done against the Policy Server where the OneView Monitor is running. In this case, is the only server answering to snmpget queries.

So for example, if we request the IP address :
snmpwalk -v 2c -c public 

It will answer with the data for all the Policy Servers;
SNMPv2-SMI::enterprises.2552.200.300. = IpAddress:
SNMPv2-SMI::enterprises.2552.200.300. = IpAddress: 
SNMPv2-SMI::enterprises.2552.200.300. = IpAddress:
SNMPv2-SMI::enterprises.2552.200.300. = IpAddress: