After Updating my WIndows Controller from 2.479.3 to 2.492.1 most of my WIndows Agents no longer connects to the controller.
They showed the following message:
Feb. 10, 2025 1:59:45 PM hudson.remoting.Launcher$CuiListener status
INFORMATION: Could not locate server among […/;|https://servername.com:8443/];] waiting 10 seconds before retry
java.io.IOException: Failed to connect to https://servername:8443/tcpSlaveAgentListener/: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at org.jenkinsci.remoting.engine.JnlpAgentEndpointResolver.resolve(JnlpAgentEndpointResolver.java:230)
When rolling back to 2.479.3 every thing is ok again!