Cacti not showing Graphs on Centos 7.3

[Aun]

Hello

We have cacti installed on a CentOS 7.3 box but it is not showing graphs. Here are some useful info:

/var/log/cacti/cacti.logs show the following after 5 minute cron runs:

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01/30/2017 05:50:03 AM - CMDPHP: Poller[0] WARNING: SNMP Get Timeout for Host:'localhost', and OID:'.1.3.6.1.2.1.1.3.0'
01/30/2017 05:50:03 AM - SYSTEM STATS: Time:2.1480 Method:cmd.php Processes:1 Threads:N/A Hosts:4 HostsPerProcess:4 DataSources:1075 RRDsProcessed:0

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Here is what SNMPD status shows:
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# systemctl status snmpd
● snmpd.service - Simple Network Management Protocol (SNMP) Daemon.
Loaded: loaded (/usr/lib/systemd/system/snmpd.service; enabled; vendor preset: disabled)
Active: active (running) since Mon 2017-01-30 02:38:45 EST; 3h 15min ago
Main PID: 26409 (snmpd)
CGroup: /system.slice/snmpd.service
└─26409 /usr/sbin/snmpd -LS0-6d -f

Jan 30 02:38:45 management systemd[1]: Starting Simple Network Management Protocol (SNMP) Daemon....
Jan 30 02:38:45 management snmpd[26409]: Duplicate IPv4 address detected, some interfaces may not be visible in IP-MIB
Jan 30 02:38:45 management snmpd[26409]: NET-SNMP version 5.7.2
Jan 30 02:38:45 management systemd[1]: Started Simple Network Management Protocol (SNMP) Daemon..

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We are clueless as how to troubleshoot it further.

Regards
Aun