adding source (trying to install repo)

Hi there, i’m quite new for kodi but i’m following step by step guides to do this ans still receiving fallowing error when adding source ( trying to install repo ):

Could’t retrieve directory information. This could be due to the network not being connected. Would you like to add it anyway?

Using M7 PRO ANDROID TV BOX. Latest version of kodi installed( 16.1). Internet connected and i tried wifi so as cable = receiving same massage.

If anyone could help i would appreciate.

Many thanks,
Boogey14