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#1 2016-02-02 19:45:55

cypher_zero
Member
Registered: 2014-10-23
Posts: 50

Wireless operating abysmally slow

For a while now, I've had an issue where my wireless is abysmally slow.  I've got a 30mbps external connection on an 802.11n network and I'm consistently getting less than 1mbps. 

The wireless card is a USB attached TP-Link TL-WN722N. 

Relevant output from "lsusb -v"

Bus 005 Device 006: ID 0cf3:9271 Atheros Communications, Inc. AR9271 802.11n
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass          255 Vendor Specific Class
  bDeviceSubClass       255 Vendor Specific Subclass
  bDeviceProtocol       255 Vendor Specific Protocol
  bMaxPacketSize0        64
  idVendor           0x0cf3 Atheros Communications, Inc.
  idProduct          0x9271 AR9271 802.11n
  bcdDevice            1.08
  iManufacturer          16 
  iProduct               32 
  iSerial                48 
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           60
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0 
    bmAttributes         0x80
      (Bus Powered)
    MaxPower              500mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           6
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass      0 
      bInterfaceProtocol      0 
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x01  EP 1 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x83  EP 3 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval               1
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x04  EP 4 OUT
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval               1
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x05  EP 5 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x06  EP 6 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               0

I'm hoping someone can help point me in the right direction here.  Any advice?

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#2 2016-02-02 19:51:03

Head_on_a_Stick
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From: The Wirral
Registered: 2014-02-20
Posts: 8,999
Website

Re: Wireless operating abysmally slow

Try disabling the hardware-based encryption, as outlined here:
https://wiki.archlinux.org/index.php/Wi … tion#ath9k

(I am presuming the ath9k driver is being used)

Last edited by Head_on_a_Stick (2016-02-02 19:51:26)

Jin, Jîyan, Azadî

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#3 2016-02-02 21:37:03

cypher_zero
Member
Registered: 2014-10-23
Posts: 50

Re: Wireless operating abysmally slow

I think it should be the ath9k_htc, but I haven't been able to figure out where that would be listed.  If I'm reading the wiki right, what driver it's using should have been in the output of "lsusb -v", but I'm not seeing it. 

I've tried setting that option in /etc/modprobe.d/ath9k.conf and ath9k_htc.conf and it doesn't appear to have had any affect.

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#4 2016-02-02 21:41:14

Head_on_a_Stick
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From: The Wirral
Registered: 2014-02-20
Posts: 8,999
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Re: Wireless operating abysmally slow

The name of the file is irrelevant, the module is defined after "options"

You could try running `udevadm monitor` and then plug the device in and see if the loaded module is listed by the kernel ring buffer or the usb-modeswitch udev rule.

I don't have any USB wi-fi devices handy to check.

Jin, Jîyan, Azadî

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#5 2016-02-02 21:49:20

cypher_zero
Member
Registered: 2014-10-23
Posts: 50

Re: Wireless operating abysmally slow

Head_on_a_Stick wrote:

The name of the file is irrelevant, the module is defined after "options"

Good to know.  That's how I've always seen it.  In any case, I've done that for both ath9k and ath9k_htc and it hasn't had any effect. 

Here's what I get as output from "udevadm monitor" when plugging it in:

KERNEL[560.967670] add      /devices/pci0000:00/0000:00:15.2/0000:0b:00.0/usb5/5-1/5-1.1/5-1.1.4 (usb)
KERNEL[560.969930] add      /devices/pci0000:00/0000:00:15.2/0000:0b:00.0/usb5/5-1/5-1.1/5-1.1.4/5-1.1.4:1.0 (usb)
UDEV  [560.990905] add      /devices/pci0000:00/0000:00:15.2/0000:0b:00.0/usb5/5-1/5-1.1/5-1.1.4 (usb)
UDEV  [560.993654] add      /devices/pci0000:00/0000:00:15.2/0000:0b:00.0/usb5/5-1/5-1.1/5-1.1.4/5-1.1.4:1.0 (usb)
KERNEL[562.386661] add      /devices/pci0000:00/0000:00:15.2/0000:0b:00.0/usb5/5-1/5-1.1/5-1.1.4/5-1.1.4:1.0/ieee80211/phy2 (ieee80211)
KERNEL[562.386866] add      /devices/pci0000:00/0000:00:15.2/0000:0b:00.0/usb5/5-1/5-1.1/5-1.1.4/5-1.1.4:1.0/ieee80211/phy2/rfkill2 (rfkill)
KERNEL[562.387261] add      /devices/pci0000:00/0000:00:15.2/0000:0b:00.0/usb5/5-1/5-1.1/5-1.1.4/5-1.1.4:1.0/net/wlan0 (net)
KERNEL[562.387406] add      /devices/pci0000:00/0000:00:15.2/0000:0b:00.0/usb5/5-1/5-1.1/5-1.1.4/5-1.1.4:1.0/net/wlan0/queues/rx-0 (queues)
KERNEL[562.387539] add      /devices/pci0000:00/0000:00:15.2/0000:0b:00.0/usb5/5-1/5-1.1/5-1.1.4/5-1.1.4:1.0/net/wlan0/queues/tx-0 (queues)
KERNEL[562.387672] add      /devices/pci0000:00/0000:00:15.2/0000:0b:00.0/usb5/5-1/5-1.1/5-1.1.4/5-1.1.4:1.0/net/wlan0/queues/tx-1 (queues)
KERNEL[562.387874] add      /devices/pci0000:00/0000:00:15.2/0000:0b:00.0/usb5/5-1/5-1.1/5-1.1.4/5-1.1.4:1.0/net/wlan0/queues/tx-2 (queues)
KERNEL[562.388008] add      /devices/pci0000:00/0000:00:15.2/0000:0b:00.0/usb5/5-1/5-1.1/5-1.1.4/5-1.1.4:1.0/net/wlan0/queues/tx-3 (queues)
KERNEL[562.388477] change   /devices/platform/regulatory.0 (platform)
UDEV  [562.391095] add      /devices/pci0000:00/0000:00:15.2/0000:0b:00.0/usb5/5-1/5-1.1/5-1.1.4/5-1.1.4:1.0/ieee80211/phy2 (ieee80211)
KERNEL[562.392017] add      /devices/pci0000:00/0000:00:15.2/0000:0b:00.0/usb5/5-1/5-1.1/5-1.1.4/5-1.1.4:1.0/leds/ath9k_htc-phy2 (leds)
KERNEL[562.392108] change   /devices/pci0000:00/0000:00:15.2/0000:0b:00.0/usb5/5-1/5-1.1/5-1.1.4/5-1.1.4:1.0/leds/ath9k_htc-phy2 (leds)
UDEV  [562.392644] add      /devices/pci0000:00/0000:00:15.2/0000:0b:00.0/usb5/5-1/5-1.1/5-1.1.4/5-1.1.4:1.0/ieee80211/phy2/rfkill2 (rfkill)
KERNEL[562.395040] move     /devices/pci0000:00/0000:00:15.2/0000:0b:00.0/usb5/5-1/5-1.1/5-1.1.4/5-1.1.4:1.0/net/wlp11s0u1u1u4 (net)
UDEV  [562.395060] add      /devices/pci0000:00/0000:00:15.2/0000:0b:00.0/usb5/5-1/5-1.1/5-1.1.4/5-1.1.4:1.0/leds/ath9k_htc-phy2 (leds)
UDEV  [562.395565] change   /devices/pci0000:00/0000:00:15.2/0000:0b:00.0/usb5/5-1/5-1.1/5-1.1.4/5-1.1.4:1.0/leds/ath9k_htc-phy2 (leds)
UDEV  [562.420520] change   /devices/platform/regulatory.0 (platform)
UDEV  [562.422315] add      /devices/pci0000:00/0000:00:15.2/0000:0b:00.0/usb5/5-1/5-1.1/5-1.1.4/5-1.1.4:1.0/net/wlp11s0u1u1u4 (net)
UDEV  [562.427986] add      /devices/pci0000:00/0000:00:15.2/0000:0b:00.0/usb5/5-1/5-1.1/5-1.1.4/5-1.1.4:1.0/net/wlan0/queues/tx-1 (queues)
UDEV  [562.430746] add      /devices/pci0000:00/0000:00:15.2/0000:0b:00.0/usb5/5-1/5-1.1/5-1.1.4/5-1.1.4:1.0/net/wlan0/queues/tx-0 (queues)
UDEV  [562.430813] add      /devices/pci0000:00/0000:00:15.2/0000:0b:00.0/usb5/5-1/5-1.1/5-1.1.4/5-1.1.4:1.0/net/wlan0/queues/rx-0 (queues)
UDEV  [562.431239] add      /devices/pci0000:00/0000:00:15.2/0000:0b:00.0/usb5/5-1/5-1.1/5-1.1.4/5-1.1.4:1.0/net/wlan0/queues/tx-3 (queues)
UDEV  [562.431957] add      /devices/pci0000:00/0000:00:15.2/0000:0b:00.0/usb5/5-1/5-1.1/5-1.1.4/5-1.1.4:1.0/net/wlan0/queues/tx-2 (queues)
UDEV  [562.433050] move     /devices/pci0000:00/0000:00:15.2/0000:0b:00.0/usb5/5-1/5-1.1/5-1.1.4/5-1.1.4:1.0/net/wlp11s0u1u1u4 (net)
KERNEL[564.855604] change   /devices/platform/regulatory.0 (platform)
UDEV  [564.859338] change   /devices/platform/regulatory.0 (platform)
KERNEL[566.516349] change   /devices/platform/regulatory.0 (platform)
KERNEL[566.520460] change   /devices/platform/regulatory.0 (platform)
UDEV  [566.520629] change   /devices/platform/regulatory.0 (platform)
UDEV  [566.523464] change   /devices/platform/regulatory.0 (platform)
KERNEL[568.323622] change   /devices/platform/regulatory.0 (platform)
UDEV  [568.328304] change   /devices/platform/regulatory.0 (platform)

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#6 2016-02-02 21:51:49

Head_on_a_Stick
Member
From: The Wirral
Registered: 2014-02-20
Posts: 8,999
Website

Re: Wireless operating abysmally slow

How about:

# lsmod|grep ath

From your output, it looks like it's called "ath9k_htc"

Jin, Jîyan, Azadî

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#7 2016-02-02 21:55:32

cypher_zero
Member
Registered: 2014-10-23
Posts: 50

Re: Wireless operating abysmally slow

ath9k_htc              65536  0
ath9k_common           32768  1 ath9k_htc
ath9k_hw              434176  2 ath9k_common,ath9k_htc
ath                    28672  3 ath9k_common,ath9k_htc,ath9k_hw
mac80211              647168  1 ath9k_htc
cfg80211              466944  4 ath,ath9k_common,mac80211,ath9k_htc
led_class              16384  3 ath9k_htc,input_leds,asus_wmi
dm_multipath           24576  0
usbcore               196608  13 usblp,snd_usb_audio,uvcvideo,ohci_hcd,ohci_pci,snd_usbmidi_lib,ehci_hcd,ehci_pci,hid_roccat_common,usbhid,ath9k_htc,xhci_hcd,xhci_pci
scsi_mod              151552  4 dm_multipath,libata,sd_mod,sr_mod
dm_mod                 98304  9 dm_multipath

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#8 2016-02-02 21:56:47

Head_on_a_Stick
Member
From: The Wirral
Registered: 2014-02-20
Posts: 8,999
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Re: Wireless operating abysmally slow

Well, there we go.

But it doesn't work?

sad

You can check any other options with:

# modinfo ath9k_htc

Jin, Jîyan, Azadî

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#9 2016-02-02 22:07:37

cypher_zero
Member
Registered: 2014-10-23
Posts: 50

Re: Wireless operating abysmally slow

The adapter works, but the connection speed on it is abysmal.  I'm consistently getting less that 1mbps up and down where other devices connected to the same network get over 20mbps.

Here's the output of "modinfo ath9k_htc":

filename:       /lib/modules/4.3.3-3-ARCH/kernel/drivers/net/wireless/ath/ath9k/ath9k_htc.ko.gz                         
firmware:       htc_9271.fw                                                                                             
firmware:       htc_7010.fw                                                                                             
description:    Atheros driver 802.11n HTC based wireless devices                                                       
license:        Dual BSD/GPL                                                                                            
author:         Atheros Communications                                                                                  
alias:          usb:v0CF3p20FFd*dc*dsc*dp*ic*isc*ip*in*                                                                 
alias:          usb:v04DAp3904d*dc*dsc*dp*ic*isc*ip*in*                                                                 
alias:          usb:v0411p0197d*dc*dsc*dp*ic*isc*ip*in*                                                                 
alias:          usb:v0411p017Fd*dc*dsc*dp*ic*isc*ip*in*                                                                 
alias:          usb:v083ApA704d*dc*dsc*dp*ic*isc*ip*in*                                                                 
alias:          usb:v0846p9018d*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v0CF3p7010d*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v1668p1200d*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v0CF3p7015d*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v0471p209Ed*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v057Cp8403d*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v0CF3pB002d*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v0CF3pB003d*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v040Dp3801d*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v04CAp4605d*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v13D3p3350d*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v13D3p3349d*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v13D3p3348d*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v13D3p3346d*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v13D3p3328d*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v13D3p3327d*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v07D1p3A10d*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v0846p9030d*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v0CF3p1006d*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v0CF3p9271d*dc*dsc*dp*ic*isc*ip*in*
depends:        mac80211,ath9k_hw,ath9k_common,led-class,ath,cfg80211,usbcore
intree:         Y
vermagic:       4.3.3-3-ARCH SMP preempt mod_unload modversions 
parm:           debug:Debugging mask (uint)
parm:           nohwcrypt:Disable hardware encryption (int)
parm:           btcoex_enable:Enable wifi-BT coexistence (int)
parm:           ps_enable:Enable WLAN PowerSave (int)
parm:           blink:Enable LED blink on activity (int)

If I'm reading this right, it looks like the hardware encryption is disabled.

Last edited by cypher_zero (2016-02-02 22:10:53)

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#10 2016-02-02 22:17:47

Head_on_a_Stick
Member
From: The Wirral
Registered: 2014-02-20
Posts: 8,999
Website

Re: Wireless operating abysmally slow

Try disabling the power saving option:

options ath9k-htc nohwcrypt=1 ps_enable=0

Perhaps also toggle the btcoex_enable option.

Jin, Jîyan, Azadî

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#11 2016-02-02 22:32:57

cypher_zero
Member
Registered: 2014-10-23
Posts: 50

Re: Wireless operating abysmally slow

No dice.  Same results.

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#12 2016-02-02 22:57:22

cypher_zero
Member
Registered: 2014-10-23
Posts: 50

Re: Wireless operating abysmally slow

Well, I think I'm giving up on this adapter.  I've grabbed a different one and I'm seeing much better speeds now.  Still have no clue why the other is running so terribly.

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