Hi, You do not need to save the configuration to force the disconnection, you can use the disconnection REST call URL see https://github.com/jenkinsci/ssh-slaves-plugin/blob/master/doc/TROUBLESHOOTING.md#force-disconnection
About the disconnection error, this trace is the last error after the disconnection but it is not the cause before this error should be another that it is what causes the disconnection. the error that you show it is because there is no connection to the agent and it is not possible to remove the remoting.jar file. Try to grab the info I need to troubleshooting this kind of issues see https://github.com/jenkinsci/ssh-slaves-plugin/blob/master/doc/TROUBLESHOOTING.md#common-info-needed-to-troubleshooting-a-bug -- You received this message because you are subscribed to the Google Groups "Jenkins Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to jenkinsci-users+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/jenkinsci-users/2f8395ff-5c0a-4073-9832-3d33d2e03602%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
