Wifi band frequency setting

[Samsung_VHEadsN]

Hi, I have samsung galaxy note n8000 tab, I would like to know if it has dual band wifi. But my only research has showed me it's dual band but when I try to connect to my ACT broadband through wifi it shows only 2.4 ghz and doesn't show 5ghz. It connects to 2.4ghz. 

Please guide me to use the 5ghz wifi.

[saikodali]

you have to install wifi certificates

[Murad95]

how to install this? and which certificate should i install? i am facing same problem

[saikodali]

Download certificates from sammobile.com