Device42 default credentials are:
Virtual appliance console login:
username: device42 password: adm!nd42
this can be changed from the VM console using option number "10"

Web application login:
username: admin password: adm!nd42
this can be changed from the web interface:

Appliance manager:
username: d42admin password: default
this can be changed from the appliance manager web interface:

And finally the remote collector credentials:
username: client password: device42
this can be changed from the remote collector console:
