Comelit MT 48086 - Manual (Page 11)

Locate in the list, the MAC address of the device with which you want to communicate, select it
and press the ADD button.
Insert a common SSID to all the devices and a unique name for each.
Press the "ADD" button and make sure that the MAC address appears in the lower table.
Repeat the same operation for the other devices up to a maximum of 4 for each CPE for a total of
up to 8 devices connected together in wifi.
In case you must manage more than 8 CPE, is necessary to separate them into groups of 8.
2.5 Security
By following the above steps, you can not set any encryption key because the communication
takes place only between the authorized MAC.
If you wish, you can define a key wep dedicated.
To change the password to access the bridge select SYSTEM CONFIGURATION and PASSWORD
SETTINGS.
Enter the current password and the new repeating it in the confirmation field.