I'm not sure if this will help you, but my wireless connection disappeared after using DoFlicky to install the Broadcom STA drivers and I got it back by running depmod -a and rebooting.

    ctriaan, it's not workint here. It appears "depmod: ERROR: openat(/lib/modules... Permission denied" when I try it.

        ctriaan, when I try it it appears it also doesn't work because I'm not the owner of /usr/lib64/sudoers (something like that; not know by sure because I have to come to Windows ^^)

        Then I tried to give myself permission, but it also didn't work.

            I did it, @ctriaan :\

            It appeared:

            error in loading /etc/sudo/conf, line 0 to load plug-in "sudoers_policy"
            /usr/lib64/sudo/sudoers.so can only be recorded/written (?) by the owner
            fatal error, it wasn't possible to load the plug-ins

            I don't know how you can add yourself to the sudo group if you don't have permission to do it.

            Does anyone else have some advice?

            @Justin suggestion also isn't working because of the same sudoers_policy issue. Still stuck here ☚ī¸

            My way, would be to boot into single-user/emergency mode and correct the sudoers file, reboot into normal/multiuser. Done. You should now have sudo based root authority.
            Then you can work on your wireless issue 😉

              Hey,

              I managed to solve the sudo based authority, thanks, dbarron, but I didn't solve the wireless issue. None of the recent updates seem to be wifi-related, so — as a Linux newbie user — I really don't know what else should I try.

              I probably will reinstall Solus next days.

              Anyway, thanks for the attention and help, everybody ❤ī¸

                Did we get a kernel update (I didn't check/notice) since you last updated? That would certainly be wifi related.

                3 years later

                I am having a wifi issue on my Dell Inspiron 1521. Some in the latest updates caused it to stop working. I rolled back to a previous update from a couple weeks ago and got it working again. Now, how can I do any new updates without having it break my wifi again?

                  sataylor56 You used a post where the last entry was 3 years ago, called necro.
                  As for the question, show wpa_supplicant -v

                    We had numerous issues with wpa_supplicant 2.10. We downgraded to 2.9 and backported the security fixes from 2.10. Updating to the latest version should resolve your issues.

                    Also please don't necro old threads, cheers

                    Sorry, I thought I was having the same kind of problem and I was followeing the reccommendations in this topic that I should continue here. Anyway here is the result:
                    wpa_supplicant v2.9
                    Copyright (c) 2003-2019, Jouni Malinen j@w1.fi and contributors
                    So, yes I am now on v2.9. I'll try updating again.
                    Thanks