System
System
Click Maintenance > System to open the following screen. Assign a unique name to the Zyxel Device so it can be easily recognized on your network. You can use up to 30 printable characters except [ " ], [ ` ], [ ' ], [ < ], [ > ], [ ^ ], [ $ ], [ | ], [ & ], or [ ; ]. Spaces are allowed.
Maintenance > System
The following table describes the labels in this screen.
Maintenance > System 
Label
Description
Host Name
Enter a descriptive host name for your Zyxel Device. You can use up to 30 printable characters except [ " ], [ ` ], [ ' ], [ < ], [ > ], [ ^ ], [ $ ], [ | ], [ & ], or [ ; ]. Spaces are allowed.
For some models, the supported maximum input length is 16 alphanumeric characters.
Domain Name
Enter a domain name for your host Zyxel Device. You can use up to 30 printable characters except [ " ], [ ` ], [ ' ], [ < ], [ > ], [ ^ ], [ $ ], [ | ], [ & ], or [ ; ]. Spaces are allowed.
Cancel
Click Cancel to abandon this screen without saving.
Apply
Click Apply to save your changes.