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#1 2009-10-23 03:09:05

DarksideEE7
Member
From: Arkansas, United States
Registered: 2009-06-06
Posts: 356

AR928X wifi connection stability problems, device or resource busy

I'm experiencing some serious wifi instability issues lately.  I have always experienced disconnects, but they used to be much less frequent, and I could easily remedy them by the procedure described below.

I use the same method as you netcfg and net-profiles.  I have 3 different wifi networks that I use regularly.  One of them is WPA2 (my home, I use wpa supplicant) and the other 2 are completely open.
Normally if I drop connection a simple:
sudo netcfg -a;sudo netcfg *net profile name here*
will bring back the connection.  However now I can't get it to pick it back up.  I get this:

wlan0     Interface doesn't support scanning : Device or resource busy

when I try to bring up the network profile. 
dmesg shows:

ADDRCONF(NETDEV_UP): wlan0: link is not ready

Every time I try to bring the driver down, then back up using:
sudo ifconfig wlan0 down;sudo ifconfig wlan0 up
I get that same line in dmesg. 
I'm at a loss, and this is really annoying. 

If I simply reboot I can connect with net-profiles easily, no power cycling the access point needed. 
I just lost connection and can't get it back up, so I connected via eth0 in hopes to provide all accurate info.....maybe I need to write up a bug on the kernel module?
Here is lspci -v output:

00:00.0 Host bridge: Intel Corporation Mobile 945GME Express Memory Controller Hub (rev 03)
        Subsystem: ASUSTeK Computer Inc. Device 830f                                       
        Flags: bus master, fast devsel, latency 0                                          
        Capabilities: [e0] Vendor Specific Information <?>                                 
        Kernel driver in use: agpgart-intel                                                
        Kernel modules: intel-agp                                                          

00:02.0 VGA compatible controller: Intel Corporation Mobile 945GME Express Integrated Graphics Controller (rev 03) (prog-if 00 [VGA controller])                                                                                                        
        Subsystem: ASUSTeK Computer Inc. Device 830f                                                                        
        Flags: bus master, fast devsel, latency 0, IRQ 16                                                                   
        Memory at fbd00000 (32-bit, non-prefetchable) [size=512K]                                                           
        I/O ports at dc80 [size=8]                                                                                          
        Memory at d0000000 (32-bit, prefetchable) [size=256M]                                                               
        Memory at fbcc0000 (32-bit, non-prefetchable) [size=256K]                                                           
        Expansion ROM at <unassigned> [disabled]                                                                            
        Capabilities: [90] MSI: Enable- Count=1/1 Maskable- 64bit-                                                          
        Capabilities: [d0] Power Management version 2                                                                       

00:02.1 Display controller: Intel Corporation Mobile 945GM/GMS/GME, 943/940GML Express Integrated Graphics Controller (rev 03)                                                                                                                          
        Subsystem: ASUSTeK Computer Inc. Device 830f                                                                        
        Flags: bus master, fast devsel, latency 0                                                                           
        Memory at fbd80000 (32-bit, non-prefetchable) [size=512K]                                                           
        Capabilities: [d0] Power Management version 2                                                                       

00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller (rev 02)
        Subsystem: ASUSTeK Computer Inc. Device 834a                                                  
        Flags: bus master, fast devsel, latency 0, IRQ 16                                             
        Memory at fbcb8000 (64-bit, non-prefetchable) [size=16K]                                      
        Capabilities: [50] Power Management version 2                                                 
        Capabilities: [60] MSI: Enable- Count=1/1 Maskable- 64bit+                                    
        Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00                           
        Capabilities: [100] Virtual Channel <?>                                                       
        Capabilities: [130] Root Complex Link <?>                                                     
        Kernel driver in use: HDA Intel                                                               
        Kernel modules: snd-hda-intel                                                                 

00:1c.0 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 1 (rev 02) (prog-if 00 [Normal decode])
        Flags: bus master, fast devsel, latency 0                                                                  
        Bus: primary=00, secondary=03, subordinate=03, sec-latency=0                                               
        Capabilities: [40] Express Root Port (Slot+), MSI 00                                                       
        Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-                                                 
        Capabilities: [90] Subsystem: ASUSTeK Computer Inc. Device 830f                                            
        Capabilities: [a0] Power Management version 2                                                              
        Capabilities: [100] Virtual Channel <?>                                                                    
        Capabilities: [180] Root Complex Link <?>                                                                  
        Kernel driver in use: pcieport-driver                                                                      
        Kernel modules: shpchp                                                                                     

00:1c.1 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 2 (rev 02) (prog-if 00 [Normal decode])
        Flags: bus master, fast devsel, latency 0                                                                  
        Bus: primary=00, secondary=02, subordinate=02, sec-latency=0                                               
        I/O behind bridge: 0000e000-0000efff                                                                       
        Memory behind bridge: fbf00000-fbffffff                                                                    
        Capabilities: [40] Express Root Port (Slot+), MSI 00                                                       
        Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-                                                 
        Capabilities: [90] Subsystem: ASUSTeK Computer Inc. Device 830f                                            
        Capabilities: [a0] Power Management version 2                                                              
        Capabilities: [100] Virtual Channel <?>                                                                    
        Capabilities: [180] Root Complex Link <?>                                                                  
        Kernel driver in use: pcieport-driver                                                                      
        Kernel modules: shpchp                                                                                     

00:1c.2 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 3 (rev 02) (prog-if 00 [Normal decode])
        Flags: bus master, fast devsel, latency 0                                                                  
        Bus: primary=00, secondary=01, subordinate=01, sec-latency=0                                               
        Memory behind bridge: fbe00000-fbefffff                                                                    
        Capabilities: [40] Express Root Port (Slot+), MSI 00                                                       
        Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-                                                 
        Capabilities: [90] Subsystem: ASUSTeK Computer Inc. Device 830f                                            
        Capabilities: [a0] Power Management version 2                                                              
        Capabilities: [100] Virtual Channel <?>                                                                    
        Capabilities: [180] Root Complex Link <?>                                                                  
        Kernel driver in use: pcieport-driver                                                                      
        Kernel modules: shpchp                                                                                     

00:1d.0 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #1 (rev 02) (prog-if 00 [UHCI])
        Subsystem: ASUSTeK Computer Inc. Device 830f                                                              
        Flags: bus master, medium devsel, latency 0, IRQ 23                                                       
        I/O ports at d480 [size=32]                                                                               
        Kernel driver in use: uhci_hcd                                                                            
        Kernel modules: uhci-hcd                                                                                  

00:1d.1 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #2 (rev 02) (prog-if 00 [UHCI])
        Subsystem: ASUSTeK Computer Inc. Device 830f                                                              
        Flags: bus master, medium devsel, latency 0, IRQ 22                                                       
        I/O ports at d800 [size=32]                                                                               
        Kernel driver in use: uhci_hcd                                                                            
        Kernel modules: uhci-hcd                                                                                  

00:1d.2 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #3 (rev 02) (prog-if 00 [UHCI])
        Subsystem: ASUSTeK Computer Inc. Device 830f                                                              
        Flags: bus master, medium devsel, latency 0, IRQ 21                                                       
        I/O ports at d880 [size=32]                                                                               
        Kernel driver in use: uhci_hcd                                                                            
        Kernel modules: uhci-hcd                                                                                  

00:1d.3 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #4 (rev 02) (prog-if 00 [UHCI])
        Subsystem: ASUSTeK Computer Inc. Device 830f                                                              
        Flags: bus master, medium devsel, latency 0, IRQ 20                                                       
        I/O ports at dc00 [size=32]                                                                               
        Kernel driver in use: uhci_hcd                                                                            
        Kernel modules: uhci-hcd                                                                                  

00:1d.7 USB Controller: Intel Corporation 82801G (ICH7 Family) USB2 EHCI Controller (rev 02) (prog-if 20 [EHCI])
        Subsystem: ASUSTeK Computer Inc. Device 830f                                                            
        Flags: bus master, medium devsel, latency 0, IRQ 23                                                     
        Memory at fbcb7c00 (32-bit, non-prefetchable) [size=1K]                                                 
        Capabilities: [50] Power Management version 2                                                           
        Capabilities: [58] Debug port: BAR=1 offset=00a0                                                        
        Kernel driver in use: ehci_hcd                                                                          
        Kernel modules: ehci-hcd                                                                                

00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev e2) (prog-if 01 [Subtractive decode])
        Flags: bus master, fast devsel, latency 0                                                       
        Bus: primary=00, secondary=04, subordinate=04, sec-latency=32                                   
        Capabilities: [50] Subsystem: ASUSTeK Computer Inc. Device 830f                                 

00:1f.0 ISA bridge: Intel Corporation 82801GBM (ICH7-M) LPC Interface Bridge (rev 02)
        Subsystem: ASUSTeK Computer Inc. Device 830f                                 
        Flags: bus master, medium devsel, latency 0                                  
        Capabilities: [e0] Vendor Specific Information <?>                           
        Kernel modules: iTCO_wdt, intel-rng                                          

00:1f.2 IDE interface: Intel Corporation 82801GBM/GHM (ICH7 Family) SATA IDE Controller (rev 02) (prog-if 80 [Master])
        Subsystem: ASUSTeK Computer Inc. Device 830f                                                                  
        Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 19                                                    
        I/O ports at 01f0 [size=8]                                                                                    
        I/O ports at 03f4 [size=1]                                                                                    
        I/O ports at 0170 [size=8]                                                                                    
        I/O ports at 0374 [size=1]                                                                                    
        I/O ports at ffa0 [size=16]                                                                                   
        Capabilities: [70] Power Management version 2                                                                 
        Kernel driver in use: ata_piix                                                                                
        Kernel modules: ata_piix                                                                                      

00:1f.3 SMBus: Intel Corporation 82801G (ICH7 Family) SMBus Controller (rev 02)
        Subsystem: ASUSTeK Computer Inc. Device 830f                           
        Flags: medium devsel, IRQ 19                                           
        I/O ports at 0400 [size=32]                                            
        Kernel modules: i2c-i801                                               

01:00.0 Network controller: Atheros Communications Inc. AR928X Wireless Network Adapter (PCI-Express) (rev 01)
        Subsystem: Device 1a3b:1067                                                                           
        Physical Slot: eeepc-wifi                                                                             
        Flags: bus master, fast devsel, latency 0, IRQ 18                                                     
        Memory at fbef0000 (64-bit, non-prefetchable) [size=64K]
        Capabilities: [40] Power Management version 2
        Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit-
        Capabilities: [60] Express Legacy Endpoint, MSI 00
        Capabilities: [90] MSI-X: Enable- Count=1 Masked-
        Capabilities: [100] Advanced Error Reporting
        Capabilities: [140] Virtual Channel <?>
        Capabilities: [160] Device Serial Number 00-00-00-00-00-00-00-00
        Kernel driver in use: ath9k
        Kernel modules: ath9k

02:00.0 Ethernet controller: Attansic Technology Corp. Atheros AR8121/AR8113/AR8114 PCI-E Ethernet Controller (rev b0)
        Subsystem: ASUSTeK Computer Inc. Device 8324
        Flags: bus master, fast devsel, latency 0, IRQ 27
        Memory at fbfc0000 (64-bit, non-prefetchable) [size=256K]
        I/O ports at ec80 [size=128]
        Capabilities: [40] Power Management version 2
        Capabilities: [48] MSI: Enable+ Count=1/1 Maskable- 64bit+
        Capabilities: [58] Express Endpoint, MSI 00
        Capabilities: [6c] Vital Product Data
        Capabilities: [100] Advanced Error Reporting
        Capabilities: [180] Device Serial Number ff-f2-83-ac-00-23-54-ff
        Kernel driver in use: ATL1E
        Kernel modules: atl1e

and dmesg right after the drop:  (just the last part, I can post more if needed, I redirected it to a text file after the drop)

wlan0: no probe response from AP 00:14:d1:c5:a8:74 - disassociating
wlan0: authenticate with AP 00:14:d1:c5:a8:74
wlan0: authenticated
wlan0: associate with AP 00:14:d1:c5:a8:74
wlan0: RX ReassocResp from 00:14:d1:c5:a8:74 (capab=0x411 status=0 aid=3)
wlan0: associated
wlan0: no probe response from AP 00:14:d1:c5:a8:74 - disassociating
wlan0: direct probe to AP 00:14:d1:c5:a8:74 try 1
wlan0 direct probe responded
wlan0: authenticate with AP 00:14:d1:c5:a8:74
wlan0: authenticated
wlan0: associate with AP 00:14:d1:c5:a8:74
wlan0: RX ReassocResp from 00:14:d1:c5:a8:74 (capab=0x411 status=0 aid=3)
wlan0: associated
 CIFS VFS: No response for cmd 50 mid 269
wlan0: deauthenticating by local choice (reason=3)
ADDRCONF(NETDEV_UP): wlan0: link is not ready

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#2 2009-10-23 03:17:50

DarksideEE7
Member
From: Arkansas, United States
Registered: 2009-06-06
Posts: 356

Re: AR928X wifi connection stability problems, device or resource busy

Looks like this may be fixed in the next kernel build.........I'm going to check it out:
http://bugs.archlinux.org/task/16413
Here is another thread:
http://bugzilla.kernel.org/show_bug.cgi?id=13807

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#3 2009-12-11 05:39:01

DarksideEE7
Member
From: Arkansas, United States
Registered: 2009-06-06
Posts: 356

Re: AR928X wifi connection stability problems, device or resource busy

This is still going on, and it's very frustrating.  I was thinking that reducing the TX rate might help, so I'm going to try that. 

It seems that the problem is worse.  Sometimes wlan0 will disassociate, then reconnect automatically (and this is reflected in dmesg)
Sometimes I have to manually reconnect using netcfg:
sudo netcfg -a;sudo netcfg *profile name*
This will work, but quite often it will fail, saying 'Network not present'
When this happens I can try this script I wrote for troubleshooting:
sudo netcfg -a;sudo ifconfig wlan0 down;sudo iwconfig wlan0 ap off;sudo ifconfig wlan0 up
then
sudo netcfg *profile name*

I normally still get FAILED:  Network not present. 

Does anyone have any insight on helping stability? 
Any iwpriv or iwconfig options, etc that mighthelp increase stability while reducing performance?

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#4 2009-12-14 00:35:31

Aedit
Member
Registered: 2009-10-29
Posts: 138

Re: AR928X wifi connection stability problems, device or resource busy

Have you tried disabling the power saving (PS) mode? You can do it like this:

sudo iwconfig wlan0 power off

More information here:
http://wiki.archlinux.org/index.php/Samsung_N140#Wifi

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#5 2009-12-14 01:33:27

DarksideEE7
Member
From: Arkansas, United States
Registered: 2009-06-06
Posts: 356

Re: AR928X wifi connection stability problems, device or resource busy

Aedit wrote:

Have you tried disabling the power saving (PS) mode? You can do it like this:

sudo iwconfig wlan0 power off

More information here:
http://wiki.archlinux.org/index.php/Samsung_N140#Wifi

Thanks, no I sure haven't.  I'll give that a shot.  That does it permanently, right?



Does anyone know what I need to do to fully disable and enable wlan0 in order to restart my network profile (in the event that this does happen after trying the power off argument?)
Sometimes I get that the device is not yet ready (or something like that).  I don't know if there is way to 'force' the device down/up other than:
sudo ifconfig wlan0 down
sudo ifconfig wlan0 up

Last edited by DarksideEE7 (2009-12-14 03:55:13)

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#6 2009-12-14 04:04:39

DarksideEE7
Member
From: Arkansas, United States
Registered: 2009-06-06
Posts: 356

Re: AR928X wifi connection stability problems, device or resource busy

Well it seems that the changes made using iwconfig aren't permanent, so in order to disable power savings mode I had to add:
IWCONFIG="wlan0 power off"
to my netcfg network profile in /etc/network.d


BTW would reducing the TX power or rate help with stability.



EDIT:

Well I just had it drop on my in the middle of browsing with power management off.  This is what I got when trying to bring the network profile back down, then up:

wlan0     Interface doesn't support scanning : Device or resource busy

wlan0     Interface doesn't support scanning : Device or resource busy

wlan0     Interface doesn't support scanning : Device or resource busy

wlan0     Interface doesn't support scanning : Device or resource busy

 - Network not present.
                                                                                                                      [FAIL]

I also brought the interface down, then back up.
Here is what I saw in dmesg:

wlan0: deauthenticating by local choice (reason=3)

I'm going to try for a little longer to see if it at least helped with stability at least a little. 

If anyone else has any ideas I would love to hear it....thanks ahead of time.

After browsing for a little while without a drop (yet) I checked dmesg.  It's riddled with re-association messages:

wlan0: associate with AP 00:14:d1:c5:a8:74                                                                       
wlan0: RX AssocResp from 00:14:d1:c5:a8:74 (capab=0x411 status=0 aid=2)                                          
wlan0: associated                                                                                                
padlock: VIA PadLock not detected.                                                                               
wlan0: no probe response from AP 00:14:d1:c5:a8:74 - disassociating                                              
wlan0: authenticate with AP 00:14:d1:c5:a8:74                                                                    
wlan0: authenticated                                                                                             
wlan0: associate with AP 00:14:d1:c5:a8:74                                                                       
wlan0: RX ReassocResp from 00:14:d1:c5:a8:74 (capab=0x411 status=0 aid=2)                                        
wlan0: associated                                                                                                
[drm] Initialized drm 1.1.0 20060810                                                                             
pci 0000:00:02.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16                                                     
pci 0000:00:02.0: setting latency timer to 64                                                                    
[drm] Initialized i915 1.6.0 20080730 for 0000:00:02.0 on minor 0                                                
wlan0: no probe response from AP 00:14:d1:c5:a8:74 - disassociating                                              
wlan0: authenticate with AP 00:14:d1:c5:a8:74                                                                    
wlan0: authenticated                                                                                             
wlan0: associate with AP 00:14:d1:c5:a8:74                                                                       
wlan0: RX ReassocResp from 00:14:d1:c5:a8:74 (capab=0x411 status=0 aid=2)                                        
wlan0: associated                                                                                                
wlan0: no probe response from AP 00:14:d1:c5:a8:74 - disassociating                                              
wlan0: authenticate with AP 00:14:d1:c5:a8:74                                                                    
wlan0: authenticated                                                                                             
wlan0: associate with AP 00:14:d1:c5:a8:74                                                                       
wlan0: RX ReassocResp from 00:14:d1:c5:a8:74 (capab=0x411 status=0 aid=2)                                        
wlan0: associated                                                                                                
wlan0: no probe response from AP 00:14:d1:c5:a8:74 - disassociating                                              
wlan0: authenticate with AP 00:14:d1:c5:a8:74                                                                    
wlan0: authenticated                                                                                             
wlan0: associate with AP 00:14:d1:c5:a8:74                                                                       
wlan0: RX ReassocResp from 00:14:d1:c5:a8:74 (capab=0x411 status=0 aid=2)                                        
wlan0: associated                                                                                                
wlan0: no probe response from AP 00:14:d1:c5:a8:74 - disassociating
wlan0: authenticate with AP 00:14:d1:c5:a8:74
wlan0: authenticated
wlan0: associate with AP 00:14:d1:c5:a8:74
wlan0: RX ReassocResp from 00:14:d1:c5:a8:74 (capab=0x411 status=0 aid=2)
wlan0: associated
CE: hpet increasing min_delta_ns to 15000 nsec
wlan0: no probe response from AP 00:14:d1:c5:a8:74 - disassociating
wlan0: authenticate with AP 00:14:d1:c5:a8:74
wlan0: authenticated
wlan0: associate with AP 00:14:d1:c5:a8:74
wlan0: RX ReassocResp from 00:14:d1:c5:a8:74 (capab=0x411 status=0 aid=2)
wlan0: associated
wlan0: no probe response from AP 00:14:d1:c5:a8:74 - disassociating
wlan0: authenticate with AP 00:14:d1:c5:a8:74
wlan0: authenticated
wlan0: associate with AP 00:14:d1:c5:a8:74
wlan0: RX ReassocResp from 00:14:d1:c5:a8:74 (capab=0x411 status=0 aid=2)
wlan0: associated
wlan0: no probe response from AP 00:14:d1:c5:a8:74 - disassociating
wlan0: authenticate with AP 00:14:d1:c5:a8:74
wlan0: authenticated
wlan0: associate with AP 00:14:d1:c5:a8:74
wlan0: RX ReassocResp from 00:14:d1:c5:a8:74 (capab=0x411 status=0 aid=2)
wlan0: associated

Last edited by DarksideEE7 (2009-12-14 04:44:32)

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#7 2009-12-14 11:25:02

Aedit
Member
Registered: 2009-10-29
Posts: 138

Re: AR928X wifi connection stability problems, device or resource busy

Yes I'd make sure the power saving setting is set up every time as you did. iwconfig shows whether is is actually off or not.

For the "doesn't support scanning" issue you could try this in /etc/network.d/<profile>:

SCAN="NO"

I assume you're using the current Arch kernel, 2.6.31. I eventually gave up on that kernel because of the disassociating wireless and compiled 2.6.32 which works better. It is in the Arch [testing] repo now so you could try it out without compiling it yourself. I also have problems restarting netcfg profiles (with this card only) which I haven't resolved.

Last edited by Aedit (2009-12-14 11:27:03)

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#8 2009-12-14 15:35:19

DarksideEE7
Member
From: Arkansas, United States
Registered: 2009-06-06
Posts: 356

Re: AR928X wifi connection stability problems, device or resource busy

Aedit wrote:

Yes I'd make sure the power saving setting is set up every time as you did. iwconfig shows whether is is actually off or not.

For the "doesn't support scanning" issue you could try this in /etc/network.d/<profile>:

SCAN="NO"

I assume you're using the current Arch kernel, 2.6.31. I eventually gave up on that kernel because of the disassociating wireless and compiled 2.6.32 which works better. It is in the Arch [testing] repo now so you could try it out without compiling it yourself. I also have problems restarting netcfg profiles (with this card only) which I haven't resolved.

Yea I may try that.  I saw it in the testing repo so maybe that's worth a shot.

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#9 2009-12-17 02:00:28

cb88
Member
Registered: 2008-06-10
Posts: 10

Re: AR928X wifi connection stability problems, device or resource busy

I have the same atheros AR928X wifi card in my gateway NV53 laptop and 2.6.32 is working great no crashes and pretty stable connection speed this is with the ath9k driver of course

I have't tried with encrypted connections since its mostly used at school where they  just do mac address blocking.... but it detects they are there anyway

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#10 2010-01-06 08:39:20

DarksideEE7
Member
From: Arkansas, United States
Registered: 2009-06-06
Posts: 356

Re: AR928X wifi connection stability problems, device or resource busy

Well I bought a new laptop (ASUS UL30-X4) and it has frequent disconnects as well.  At least on this one it will reconnect automatically without having to bring the interface down/up and restarting the network profile.

The lspci -v output is:

02:00.0 Network controller: Atheros Communications Inc. AR9285 Wireless Network Adapter (PCI-Express) (rev 01)
        Subsystem: Device 1a3b:1089
        Flags: bus master, fast devsel, latency 0, IRQ 17
        Memory at feaf0000 (64-bit, non-prefetchable) [size=64K]
        Capabilities: [40] Power Management version 3
        Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit-
        Capabilities: [60] Express Legacy Endpoint, MSI 00
        Capabilities: [100] Advanced Error Reporting
        Capabilities: [140] Virtual Channel <?>
        Capabilities: [160] Device Serial Number 00-15-17-ff-ff-24-14-12
        Capabilities: [170] Power Budgeting <?>
        Kernel driver in use: ath9k
        Kernel modules: ath9k

I checked the wiki linked on post # regarding the AR9285 on the Samsung laptop, and it's correct in saying that power saving mode is now off by default in 2.6.32, however this doesn't fix the problem.

I'm going to play around with different iwconfig settings, and if I find anything useful I'll report that here.  If anyone else has any bright ideas just let me know and I'll try them.

This guy fix it with ndiswrapper.....I hate to do that but if it works I'm all about it.  Hopefully the next kernel release will be nice to ath9k, because it's been pretty bad for the last few releases.
http://bbs.archlinux.org/viewtopic.php?id=87664

Last edited by DarksideEE7 (2010-01-06 09:33:11)

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#11 2010-01-06 23:06:19

DarksideEE7
Member
From: Arkansas, United States
Registered: 2009-06-06
Posts: 356

Re: AR928X wifi connection stability problems, device or resource busy

Ok I installed ndiswrapper and used the latest driver for the AR9285 from atheros.cz.  It seems to work, however it kills any USB mouse connection. 


I'm going to test further, but I suppose if the wireless is stable that's more valuable than a working mouse (right now at least)

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#12 2010-01-13 17:37:16

DarksideEE7
Member
From: Arkansas, United States
Registered: 2009-06-06
Posts: 356

Re: AR928X wifi connection stability problems, device or resource busy

Well ndiswrapper seems to make matters worse.  FOr now I'm sticking with the buggy ath9k kernel module in hopes of a fix in a future kernel..........here's for hoping.


UPDATE:

Well it seems that my wireless is fairly stable now.  I've remove ndiswrapper, as it made matters worse and I would rather not add anything to the kernel when it's not needed. 
I used to use netcfg to manage my network connections along with netcfg-menu at boot.  I've switched to Wicd and it seems to serve me very well in re-establishing the connection in case of instability.  I do notice some latency and just flat out down time every so often, but it's at least tolerable at this point. 


That being said hopefully the ath9k module is being further developed in the coming kernel versions.

Last edited by DarksideEE7 (2010-01-15 08:36:17)

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#13 2010-01-15 17:04:45

vaquerito
Member
Registered: 2008-04-09
Posts: 32

Re: AR928X wifi connection stability problems, device or resource busy

I got same problem on two different laptop, toshiba a300d-14r and acer extensa5230E, both atheros ar928x and both manifesting it only with 2.6.31 and 2.6.32.
Found this ubuntu thread that seems to solve for asus user
http://ubuntu-virginia.ubuntuforums.org … p?t=968653.
Hope it helps.

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#14 2010-01-15 22:16:16

DarksideEE7
Member
From: Arkansas, United States
Registered: 2009-06-06
Posts: 356

Re: AR928X wifi connection stability problems, device or resource busy

Thank you for the input, but my wireless is actually quite stable now and I'm happy.  There are moments of latency, but nothing like it used to be.

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