Agent Updater "certificate verify failed"

Troubleshooting
1

CMK version:
2.2.0p17 Docker

OS version:
Debian GNU/Linux 11 (Host)
Ubuntu 22.04.3 LTS (Docker Container)

Error message:

Version: 2.2.0p17
OS: windows
Update error: HTTPSConnectionPool(host=‘cmk.[URL].net’, port=443): Max retries exceeded with url: /cmk/check_mk/deploy_agent.py (Caused by SSLError(SSLError(“bad handshake: Error([(‘SSL routines’, ‘’, ‘certificate verify failed’)])”)))
WARN
Time since last update check: 2 days 1 hour (warn/crit at 2 days 0 hours/never)
WARN
Last update: Jan 29 2024 09:54:34
Agent plugins: 1
Local checks: 0

image
image1166×51 8.97 KB

Hello, we have a problem with agent registrations:

After we registred the Update Agent all looks good:

image
image1012×36 3.1 KB

But as soon the next update check is running we get this Error:

image
image1166×51 8.97 KB

If i Restart the Agent and Run manual check its OK again until the next auto update.

2

Hi.

When you use htts for the updater, please set the complete chain in the updater rule. Intermediate and the Cert is not enough, you need also the Roor-Cert.

Rg, Christian