Users not authenticated with Active Directory appears with an Active Directory User.

[molinait]

We are having issues on our MX100. Basically the problem is that when a device connect to the network and using a local user it appears in the MX with and AD user.

This no occurs in all devices, just some of them. The devices are members of a Domain but logged with an local user.

[PhilipDAth]

I haven't tested the specifics, but more than likely it is showing you the last logged in AD user.