(In reply to Vladislav Milenin from comment #2) > Created attachment 851677 [details] > journalctl -b -u NetworkManager > > Here is the NetworkManager log for today. It was not possible to connect the > first time, but it turned out the second time. Sometimes it is possible to > randomly establish a connection. The DHCP must be configured correctly. > Before that, I worked on Linux Mint for a year, I never had such a problem. Do you mind uploading the content of "journalctl -b" instead of journal only from NetworkManager? You mentioned creating a new connection doesn't help either. Could you show the output of "nmcli connection show $newly-created-connection-name" as well? Thanks.