server not found
 

Leap won't find my internet connection; get 'server not found' [for opensuse.org].

Ok...and with hardly any useful information/details, what do you think we'll be able to tell you?? You don't say what version of Leap, what (if any) diagnostics you've done, if your internet is working *AT ALL*, etc.; we cannot guess. Much like several of your other threads, for example:
https://www.linuxquestions.org/quest...io-4175709515/

update
 

Linux version 5.3.18-lp152.19-default
messages: Reloaded wicked managed network interfaces
enabled proxy localhost,127.0.0.1
Network interfaces: WLAN
Loopback
Ethernet
Network card: Centrino Advanced-N 6200 2x2 AGN
82577LM Gigabit Network Connection (eth1)
Overwiew: eth1 not connected
wlan0 not connected
eth0 no info
wlan1 no info
wlan2 no info

..and nothing here tells us ANYTHING useful. You were asked, specifically, about if you could contact other sites, any troubleshooting (have you even bothered to try to ping Google?), and what version of Leap.

You've told us nothing. Either provide details and answer specific questions, or there isn't much point in posting.

Leap 15.2 and 15.3 are out of support, install Leap 15.4