Restricting the Users Is Not Possible

Perform the following procedure.

<Cause>The IP Address Filter or MAC Address Filter Is Not Set to On.

Solution
Select [Network] → [Address Filter] using the control panel, and then make sure that [Address Filter] is set to [On].
"[Setup] Menu ([Network] Options)"
Use the control panel to make a setting for the address filter function.
0264-0SY