I have some SEP Manager servers, a month ago we change from 12.1.4 version to 12.1.6 version, I created the packages and leave the users the installation, some or most of them reported back well but in my company there are some other SEP Manager server which I don't have access or control, it turns out that some of the users installed a package wich point to other (not mine) SEP Manager server so some of them move there.
after that I recommend to uninstall and reinstall the package I provide, and some other stuffs like providing a fix like SylinkDrop.exe I created from my SEP Manager, in other clients I replaced it mannualy. but doesn't matther what I do, some of the clients are switching back the parent server to SEP Manager which are not mine by itselves (previous wrong installation the did.).
Really appreciate any suggestions,