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#1 2013-04-24 21:11:16

cecure
Member
Registered: 2013-04-09
Posts: 5

Wifi stopped working after upgrade, Asus N13

Hi,

A couple of days ago my wireless stopped working after I ran a full upgrade.  I have tried to identify the problem to no avail.  I attempted to use the Ralink drivers for my chipset rt3072 but those worked very poorly compared to the rt2800usb driver in the kernel and it kept freezing my system.

My relevant lsusb entry:

Bus 010 Device 005: ID 0b05:1784 ASUSTek Computer, Inc. USB-N13 802.11n Network Adapter (rev. A1) [Ralink RT3072]

Output of lsmod | grep rt2

rt2800usb              17360  0 
rt2x00usb               9026  1 rt2800usb
rt2800lib              49258  1 rt2800usb
rt2x00lib              35947  3 rt2x00usb,rt2800lib,rt2800usb
mac80211              463233  3 rt2x00lib,rt2x00usb,rt2800lib
cfg80211              430289  2 mac80211,rt2x00lib
crc_ccitt               1363  1 rt2800lib
usbcore               173007  11 uhci_hcd,snd_usb_audio,rt2x00usb,rt2800usb,snd_usbmidi_lib,ehci_hcd,ehci_pci,gspca_main,usbhid,gspca_zc3xx,xhci_hcd

Output of dmesg | grep rt2

[    9.835141] usbcore: registered new interface driver rt2800usb

Output of dmesg | tail after trying to connect:

[ 3547.374615] wlan0: authenticate with 20:aa:4b:02:de:1b
[ 3547.443545] wlan0: direct probe to 20:aa:4b:02:de:1b (try 1/3)
[ 3547.643999] wlan0: direct probe to 20:aa:4b:02:de:1b (try 2/3)
[ 3547.847118] wlan0: direct probe to 20:aa:4b:02:de:1b (try 3/3)
[ 3548.050252] wlan0: authentication with 20:aa:4b:02:de:1b timed out
[ 3554.041445] wlan0: authenticate with 20:aa:4b:02:de:1b
[ 3554.110531] wlan0: direct probe to 20:aa:4b:02:de:1b (try 1/3)
[ 3554.310824] wlan0: direct probe to 20:aa:4b:02:de:1b (try 2/3)
[ 3554.513940] wlan0: direct probe to 20:aa:4b:02:de:1b (try 3/3)
[ 3554.717073] wlan0: authentication with 20:aa:4b:02:de:1b timed out

I am using wicd but I have also tried with NetworkManager (I have made sure to systemctl disable the one not under test).
I tried using wireshark in monitor mode on another computer to capture the exchange for authentication.  I can see my computer request authentication and I can see the router reply back.  The reply is an authentication successful message, but then my computer immediately tries to authenticate again.

Any help would be appreciated.

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#2 2013-04-25 10:55:12

glittercutter
Member
Registered: 2013-04-25
Posts: 3

Re: Wifi stopped working after upgrade, Asus N13

Hi,

I have the same device and a similar issue.
Connection works but pinging the router shows extremely high ping (over 3000ms) and high packet loss, especially when the network is under load.
The connection drop randomly and wont reconnect until I manualy unplug and replug the usb device.

Downgrading the kernel fixed the problem.

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#3 2013-04-27 18:29:41

ico
Member
Registered: 2011-01-25
Posts: 23

Re: Wifi stopped working after upgrade, Asus N13

glittercutter wrote:

Hi,

I have the same device and a similar issue.
Connection works but pinging the router shows extremely high ping (over 3000ms) and high packet loss, especially when the network is under load.
The connection drop randomly and wont reconnect until I manualy unplug and replug the usb device.

Downgrading the kernel fixed the problem.

Which kernel version did you downgrade to?

I also have the same device at home and I might face the same problem when I go back home next month.

Last edited by ico (2013-04-27 18:30:07)

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#4 2013-04-29 00:36:38

glittercutter
Member
Registered: 2013-04-25
Posts: 3

Re: Wifi stopped working after upgrade, Asus N13

ico wrote:

Which kernel version did you downgrade to?

I also have the same device at home and I might face the same problem when I go back home next month.

Downgraded to 'linux-3.7.9.2'.
I will try to pinpoint in which version the bug was introduced when I have time.

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#5 2013-06-11 15:45:06

glittercutter
Member
Registered: 2013-04-25
Posts: 3

Re: Wifi stopped working after upgrade, Asus N13

Following-up on my previous post, my wifi is now working normally after upgrading to 'linux-3.9.5-1'.

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