KEMP004 - Kemp LoadMaster Connection Timed Out

Agent error code #KEMP004 indicates that Knocknoc opened or attempted a connection to the Kemp LoadMaster but the request did not complete within the allowed time.

A timeout differs from a refused connection (#KEMP000). The host is reachable enough to start a connection, but the response never arrives.

Common causes include:

• The LoadMaster is under heavy load or unresponsive
• A firewall is silently dropping packets rather than rejecting them
• The management interface is reachable only over a slow or congested path

Steps to Resolve

Check the LoadMaster Health

1. Confirm the LoadMaster WUI is responsive from a browser on the same network as Knocknoc
2. Check the LoadMaster's CPU and connection load

Test Latency to the LoadMaster

1. From a host that can reach the LoadMaster, run: curl -sk -u '<username>:<password>' 'https://<loadmaster-host>/access/aclcontrol?list=white&apiformat=json'
2. If the command hangs, investigate the network path between Knocknoc and the LoadMaster (firewall drop rules, asymmetric routing, MTU)