Technical Tip: NCM communication issues with systems across WAN

Description

This article describes a setup involving multiple appliances (CAs) managed by a Network Control Manager (NCM), where communication issues may arise between the Control Manager and the managed appliances over a WAN link.

Symptoms include, but are not limited to:

• Hosts incorrectly fail scans if the Endpoint Compliance Policy was modified and a resync was performed during their scan.
• The connection between the appliance and the Control Manager is hanging.
• Control Manager /bsc/logs/output.master logs contain CORBA COMM_FAILURE messages with 'java.net.SocketException: Connection reset' and 'java.net.ConnectException: Connection timed out' errors.

Scope

FortiNAC.

Solution

Workaround:

If the host has incorrectly failed due to a policy modification and resync during scan, rescan the host.

Related article:

Technical Note: Network Control Manager Server List panel takes a long time to load