We are using PRTG to monitor the Sonicwall Interface bandwidth, traffic, CPU & Ram utilization, togther the ping time from our main office to the branch office.
We have only one firewall and one gateway. Thus, the ping time traffic must go through the firewall.
Yesterday, we found the PRTG shows that the Sonicwall Interface bandwidth, traffic, CPU & Ram utilization are disconnect at 10:04-10:06.
At the same time, the PRTG ping time from our main office to the branch office does not show any packet loss.
We checked with Sonicwall Log but no special event is found related to the PRTG server or SNMP.
We checked with the Sonicwall Sensor Log of PRTG and found the below event: No response (check: firewalls, routing, snmp settings of device, IPs, SNMP version, community, passwords etc) (SNMP error # -2003)
Is that our Sonicwall had problem? How can we check with this issue?