FortiGate Next Generation Firewall utilizes purpose-built security processors and threat intelligence security services from FortiGuard labs to deliver top-rated protection and high performance, including encrypted traffic.
This article describes how to resolve the FortiClient EMS internal error caused by a DNS resolution issue. The error occurs when the endpoint fails to connect to the FortiClient EMS server due to a DNS resolution failure.
Scope
FortiClient EMS, FortiGate.
Solution
To resolve the FortiClient EMS internal error caused by a DNS resolution issue, follow these steps:
Go to FortiClient EMS -> Settings -> Network and verify that the DNS settings are correct.
Check the DNS server IP address and ensure it is reachable from the endpoint.
Verify that the FortiClient EMS server hostname is resolvable by the DNS server.
Flush DNS Cache over the endpoint device (if DNS has changed recently).
If the issue persists:
Try to restart the endpoint and reconnect to the FortiClient EMS server.
Collect the FortiClient diagnostic log and FortiClient EMS diagnostic results file in debug mode and contact Fortinet Technical Support for further assistance.
Note:
The FortiClient EMS diagnostic results file can be generated by running the EMSDiagnosticTool.exe on the Windows server where FortiClient EMS is installed.
