Technical Tip: FortiGate status is offline from FortiManager Cloud

[Nur]

Description	This article describes that when the FortiGate is successfully integrated into the FortiManager Cloud, the status of the FortiGate is online. However, the FortiGate status can sometimes be offline.
Scope	FortiManager Cloud.
Solution	There are a few steps that need to be checked: diagnose sniffer packet any "port 541" 4 0 l >: to ensure packet flow between two devices. exe traceroute FortiManager Cloud URL // FQDN. Exp : <account ID>.<dedicated instance>.fortimanager.forticloud.com DNS is able to ping and resolve the hostname // FortiManager Cloud URL. If the DNS could not resolve the hostname as below: Check the DNS over TLS (DoT) -> Enable or Disable. (Go in Network -> DNS -> DNS over TLS). If the DNS over TLS is enabled,  ensure that the DNS servers are being supported. If the DNS servers are not supported, there is high probability of high latency, and unreachable due to 'Unable to resolve the hostname' error.