Xfi will not shutdown Xbox

[DAB67]

Xfi will shutdown my son's Xbox temporarily, but then Xbox seems to clone itself and create an new instance of itself with a different name (eg. Xbox-121) and different MAC address. Is there anyway to defeat this? If it can't do this, it defeats the entire purpose of parental controls.

[Babyjmom17]

I have the same problem the kids are making new Xbox accounts to sign right back on. Following to see what the solution is. Is there a way to change password so they don’t see it in tv screen when you ask for password?