The default domain for machines joined to the CN domain has been set to ONID. This has been done because the vast majority of our customer user accounts are in the ONID domain, so this will save folks from having to remember to put “ONID\” when logging in to a new machine.

Conversely, folks who do need to log in with CN domain accounts (service accounts, student workers, authenticating with “user plus” accounts) will now need to remember to put “CN\” in the username.