202000 - Failed to Connect to Fortinet Device

Agent error code #202000 indicates that the agent could not establish a connection to the Fortinet firewall or FortiManager. The connection attempt failed before any authentication could take place.

This error is distinct from authentication failures (#202001) or timeout errors (#202004). It indicates that the network path to the device is not functioning, or the target device is not reachable.

Common causes include:

• The hostname or IP address configured in Knocknoc is incorrect or unreachable
• The Fortinet management interface is not accessible from the agent's network
• The firewall or FortiManager device is offline or powered down
• A network firewall or access control list is blocking the connection
• The configured port number does not match the device's management port

Steps to Resolve

Verify the Hostname and Port

1. Confirm the hostname or IP address configured in Knocknoc matches the Fortinet device's management interface
2. Verify the port number is correct. The default management port for Fortinet devices is 443
3. If using a non-standard port, ensure the correct port is specified in the Knocknoc configuration

Check Network Connectivity

1. Verify the Fortinet device is powered on and operational
2. Confirm the management interface is enabled and has a valid IP address
3. Test connectivity from the agent's network to the Fortinet device using ping or telnet to the management port
4. Ensure no intermediate network firewalls or routers are blocking traffic on the management port

Review Access Restrictions

1. Log into the Fortinet device directly to check management access settings
2. Verify the "Administrative Management" settings allow access from the agent's IP address
3. Check if trusted hosts are configured and whether the agent's IP falls within the allowed range
4. For FortiManager, verify the device is registered and the management IP is correctly configured

Still Having Issues?

We can help you out, contact us at support@knocknoc.io.