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#1 2019-01-09 23:37:25

GNUGradyn
Member
Registered: 2017-04-11
Posts: 27

[SOLVED] Packet loss extremely high on wifi (Nearly 100%) (BRM4331)

I have a mid 2012 macbook pro running arch linux, everything has worked fine on it up until a few days ago. I have been using the b43-firmware-classic package as the network card is a BRM4331. A few days ago, I noticed the internet sometimes fluctuates anywhere from being slow to being so unstable that it is completely unusable. Running mtr on any address reveals very high packet loss. Most of the packet loss occurs on the very first step (_gateway). This packet loss ranges from about 5% to 90%. I've tried upgrading to b43-firmware (from b43-firwmare-classic), but it doesn't seem to change anything. I am using NetworkManager.

Any help or pointers would be appreciated as I really need a computer for school, thanks!

Note: This happens no matter what network I am on, and other devices on the same network do not experience the same problem

Note 2: Everything works totally fine on ethernet (0.00% packet loss)

Last edited by GNUGradyn (2019-01-12 19:23:25)

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#2 2019-01-10 04:57:55

GNUGradyn
Member
Registered: 2017-04-11
Posts: 27

Re: [SOLVED] Packet loss extremely high on wifi (Nearly 100%) (BRM4331)

Update: I'm pretty sure the B43 firmware is to blame. I was going to get the official drivers for this chip for linux, but apparently there are no official drivers for this chip on linux. Fantastic. What are my options from here? Are there other unofficial options?

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#3 2019-01-10 05:45:26

GNUGradyn
Member
Registered: 2017-04-11
Posts: 27

Re: [SOLVED] Packet loss extremely high on wifi (Nearly 100%) (BRM4331)

Update 2: I installed wl even tho it's not supported by this wifi card. It struggles really really bad to connect to a network (have to try at very least 10 times to connect), but works great once connected! Any tips on getting it to connect on the first try like b43 did?

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#4 2019-01-10 08:15:48

seth
Member
Registered: 2012-09-03
Posts: 9,440

Re: [SOLVED] Packet loss extremely high on wifi (Nearly 100%) (BRM4331)

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#5 2019-01-10 16:14:43

GNUGradyn
Member
Registered: 2017-04-11
Posts: 27

Re: [SOLVED] Packet loss extremely high on wifi (Nearly 100%) (BRM4331)

I noticed it works just fine on unprotected networks just before reading this, so that makes sense. Will downgrade to wpa_suppicant 2.6 and report back.

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#6 2019-01-10 16:31:12

GNUGradyn
Member
Registered: 2017-04-11
Posts: 27

Re: [SOLVED] Packet loss extremely high on wifi (Nearly 100%) (BRM4331)

Downgraded to 1:2.6-12 did not solve the problem, laptop still has trouble connecting to password protected networks. it takes it many many many tries to connect

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#7 2019-01-10 21:54:16

seth
Member
Registered: 2012-09-03
Posts: 9,440

Re: [SOLVED] Packet loss extremely high on wifi (Nearly 100%) (BRM4331)

Please post a complete journal ("sudo journalctl -b" after this happened)

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#8 2019-01-12 19:22:54

GNUGradyn
Member
Registered: 2017-04-11
Posts: 27

Re: [SOLVED] Packet loss extremely high on wifi (Nearly 100%) (BRM4331)

Turns out that did in fact solve the problem. This used to be a problem on all networks but now seems to only exist on my schools WiFi. As such I will assume the issue is now with the school, not me. Thank you!

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