I installed kali linux without the additional software (including the desktop environment) because it did not connect the pc to the wifi and consequently it did not let me proceed with the installation.
so now i'm in front of kali's terminal with no possibility to download anything because when i try to update the system i get this.

W: Unable to retrieve (link) resolution "http.kali.org" temporarily failed
W: Unable to download some index files: they will be ignored or old ones will be used

what can i do?