Arch Linux

jrutledge

Member

Registered: 2018-09-22

Posts: 2

[SOLVED] Intermittent wifi issues and unexpected consequences

Computer: Mac Book Pro mid 2012
Network manager: connman

Problem Description:

After booting my wifi will work fine for a while and then stop. Probably like 15-45 minutes of working. This has been a consistent problem for about a month.

When it stops working connman still reports a connection and so does `ip link` but I can't load websites or ping addresses (`ping 8.8.8.8` nor `ping www.google.com`). When I try to disable and then enable wifi in connman it will no longer be able to connect to any wifi networks and will report no wifi networks upon scanning. The same thing occurs if I restart the connman daemon.

Furthermore, once when I woke my computer up from suspend. It wouldn't let me log in (I use i3lock). Every time I typed in my password it would lag and then say it was wrong. I tried to log in by switching to tty2 but it wouldn't let me log in there either and was constantly outputting [ XXXX.XXXXXX] ERROR @wl_cfg80211_scan.

Why would my wifi card affect my ability to log in? This makes me think it might be a more serious hardware issue. My computer is 6 years old and I have already replace the wifi card once.

Attempted Solution:

I searched bits and pieces of the dmesg output and most posts said to make sure I had broadcom-wl-dkms installed, which I do. But I reinstalled it and followed the instructions of unloading and loading modules but it didn't fix the issue.

Log outputs when wifi won't connect:

dmesg: https://ptpb.pw/k6wl

lspci -k: https://ptpb.pw/yVft

ip link: https://ptpb.pw/l7SC

Last edited by jrutledge (2018-09-24 21:13:05)

seth

Member

From: Won't reply 2 private help req

Registered: 2012-09-03

Posts: 78,839

Re: [SOLVED] Intermittent wifi issues and unexpected consequences

Did you also try the b43 module?
See the firmware notice at https://wiki.archlinux.org/index.php/Br … reless#b43 (if you intend to try)
Also https://wiki.archlinux.org/index.php/Br … rmittently

About the login: does your password contain any chars that are on different keys on a US-QWERTY layout than they are on your keyboard?

---

How to upload text · How to boot w/o GUI · Disable Windows Fast-Start! · Fix your xinitrc

jrutledge

Member

Registered: 2018-09-22

Posts: 2

Re: [SOLVED] Intermittent wifi issues and unexpected consequences

Thanks for your reply.

I tried the b43 module instead of broadcom-wl-dkms. The wifi is still broken, but this seems to have solved the other issues: X11 crashing and inability to log in. However, I can't be completely certain because those problems were irregular. (I just have not experienced them since changing drivers.)

Via other testing, I am now confident that my wifi card is broken.

Sorry it took me a while to respond.