Network manager always connects to eth0, instead of 'Home' profile

On a newly installed Slackware64-15.0, NetworkManager always connects to eth0, though

• There is no profile eth0
• There _is_ a profile 'Home'
• I tried to define eth0 as unmanaged device
• I tried to set Home as autoconnect

This is quite annoying, as the parameters associated with 'eth0' don't work anywhere for me, so I first have to change to 'Home' or whatever.