I can think of no good reason why an older version of the KACE agent shouldn't be automatically updated, and now that the latest version will not talk to v6.x we are stuck updating 100+ machines manually (uninstalling/reinstalling) where the Group Policy Tool isn't getting it done. Please cause the K1000 Code to reach out and auto update all agents to the latest version, on a regular basis, regardless of version. In the case of the ports being mismatched it could connect on port 443 to get the upgrade done and nothing else. Also the agents should not reboot the endpoints or prompt for one.