Try this
SSID [Name of wireless hub returned for Wi-Fi name searches]
For the SSID of wireless hub, use a combination of alphabetical characters and numbers.
It is not recommended to use Korean characters or special characters, since information cannot be delivered
to the product modem properly and a connection may not be established well.
Not usable special characters : Figure based special characters [Korean + Chinese letters] [Ex: ★,●,♥ and etc]
Wi-Fi password setting
Wi-Fi password setting has no limitations on use of characters, numbers and special symbols.
But make sure to refer to the password combination setting that must be included for each service provider.
This guide was created for all models, so the images or content may be different from your product.