Bugzilla – Bug 643161
Very slow wireless connection (1Mbps) with Intel PRO/Wireless 5100ABG built-in Wi-Fi adapter ("iwlagn" module), Acer 6935G notebook
Last modified: 2011-03-02 07:32:06 UTC
Created attachment 392581 [details] Screenshot of Network Manager- Connection Information User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.2.10) Gecko/20100914 SUSE/3.6.10-0.3.1 Firefox/3.6.10 Very slow wireless connection (1Mbps) with Intel PRO/Wireless 5100ABG built-in Wi-Fi adapter ("iwlagn" module), Acer 6935G notebook OpenSUSE 11.3 system is updated using #zypper up Installed packages: sysconfig-0.73.7-2.1.1.i586 Kernel: 2.6.34.7-0.3-default #1 SMP 2010-09-20 15:27:38 +0200 i686 wireless-tools-30.pre8-11.2.i586 Default Wi-Fi connection uses WPA2-PSK (pre-shared key) Other notebooks connect to this Access Point at full speed (54Mbit, 802.11G) Notebook is located 1m from Access Point, so distance is quite short and there are no any obstacles between notebook and AP. #hwinfo --netcard 30: PCI 500.0: 0282 WLAN controller [Created at pci.318] Unique ID: y9sn.0kHEE6pntx7 Parent ID: Z7uZ.oCBN_8inpgE SysFS ID: /devices/pci0000:00/0000:00:1c.3/0000:05:00.0 SysFS BusID: 0000:05:00.0 Hardware Class: network Model: "Intel PRO/Wireless 5100ABG Network Connection" Vendor: pci 0x8086 "Intel Corporation" Device: pci 0x4232 "Wireless WiFi Link 5100" SubVendor: pci 0x8086 "Intel Corporation" SubDevice: pci 0x1206 "PRO/Wireless 5100ABG Network Connection" Driver: "iwlagn" Driver Modules: "iwlagn" Device File: wlan0 Features: WLAN Memory Range: 0xd8100000-0xd8101fff (rw,non-prefetchable) IRQ: 31 (21834 events) HW Address: 00:16:ea:c6:7d:0c Link detected: yes WLAN channels: 1 2 3 4 5 6 7 8 9 10 11 12 13 36 40 44 48 52 56 60 64 100 104 108 112 116 120 124 128 132 136 140 WLAN frequencies: 2.412 2.417 2.422 2.427 2.432 2.437 2.442 2.447 2.452 2.457 2.462 2.467 2.472 5.18 5.2 5.22 5.24 5.26 5.28 5.3 5.32 5.5 5.52 5.54 5.56 5.58 5.6 5.62 5.64 5.66 5.68 5.7 WLAN encryption modes: WEP40 WEP104 TKIP CCMP WLAN authentication modes: open sharedkey wpa-psk wpa-eap Module Alias: "pci:v00008086d00004232sv00008086sd00001206bc02sc80i00" Driver Info #0: Driver Status: iwlagn is active Driver Activation Cmd: "modprobe iwlagn" Config Status: cfg=no, avail=yes, need=no, active=unknown Attached to: #16 (PCI bridge) Reproducible: Always Steps to Reproduce: 1. Start OpenSUSE 11.3 2. Connection starts after logon 3. Check Connection Information in NetworkManager - it would be 1Mbps only Actual Results: Connection Information in NetworkManager - 1Mbps only, sometimes 5Mbps Expected Results: Connection speed should be 54Mbps (802.11g 54Mbit)
Created attachment 392583 [details] nm-tool monitoring - signal strength is 100%
Created attachment 392585 [details] Two Wi-Fi adapters- Atheros-USB and Intel 5100 Two Wi-Fi adapters- Atheros-USB and Intel 5100. Screenshot demonstrates that signal is strong for both adapters (100%) And both Wi-Fi adapters successfully connected to Access Point, using WPA2-Preshared Key security settings.
Created attachment 392587 [details] NetworkManager- Connection Information - 54Mbit for Atheros adapter NetworkManager- Connection Information - 54Mbit for Atheros adapter (ar9170usb) For Intel adapter- speed is at 1Mbit (see previous screenshot)
Could you try compat-wireless: http://download.opensuse.org/repositories/driver:/wireless/11.3-update/ ?
Created attachment 396613 [details] OpenSUSE 11.4 build 0808 - Intel 5100 ('iwlabn') - Connection Info - 1Mbps Tested with OpenSUSE 11.4 build 0808 - Intel 5100 ('iwlabn' driver) Network Manager- Connection Info - 1Mbps immediately after boot from LiveCD > nm-tool NetworkManager Tool State: connected - Device: eth0 [Auto eth0] ---------------------------------------------------- Type: Wired Driver: ATL1E State: connected Default: yes HW Address: 00:A0:D1:A9:D2:AF Capabilities: Carrier Detect: yes Speed: 100 Mb/s Wired Properties Carrier: on IPv4 Settings: Address: 192.168.1.202 Prefix: 24 (255.255.255.0) Gateway: 192.168.1.2 DNS: 192.168.1.2 - Device: wlan0 [Auto TP-L] --------------------------------------------------- Type: 802.11 WiFi Driver: iwlagn State: connected Default: no HW Address: 00:16:EA:C6:7D:0C Capabilities: Speed: 1 Mb/s Wireless Properties WEP Encryption: yes WPA Encryption: yes WPA2 Encryption: yes Wireless Access Points (* = current AP) ZXDSL531BII-66852E: Infra, 00:16:E3:66:85:2E, Freq 2462 MHz, Rate 54 Mb/s, Strength 41 dima_wireless: Infra, 00:1E:58:BF:F9:CF, Freq 2437 MHz, Rate 54 Mb/s, Strength 41 WPA *TP-L: Infra, D8:5D:4C:BF:25:B4, Freq 2427 MHz, Rate 11 Mb/s, Strength 100 WPA homenet: Infra, 00:26:18:74:54:EE, Freq 2412 MHz, Rate 54 Mb/s, Strength 45 WPA2 Thom_D005807: Infra, 00:24:D1:C8:69:07, Freq 2462 MHz, Rate 54 Mb/s, Strength 55 WPA WPA2 TRENDnet: Infra, 00:14:D1:57:F8:11, Freq 2462 MHz, Rate 54 Mb/s, Strength 52 WPA dlink: Infra, 00:26:5A:32:B7:39, Freq 2437 MHz, Rate 54 Mb/s, Strength 71 WPA IPv4 Settings: Address: 192.168.1.203 Prefix: 24 (255.255.255.0) Gateway: 192.168.1.2 DNS: 192.168.1.2 > uname -a Linux linux.site 2.6.36-rc4-16-default #1 SMP 2010-09-16 20:58:38 +0200 i686 i686 i386 GNU/Linux
Tried to add compat-wireless from Factory repository http://download.opensuse.org/repositories/driver:/wireless/openSUSE_Factory/ but it seems files there are for 2.6.30 kernel Can you please update compat-wireless files there for OpenSUSE 11.4 / Factory? Or advise on other steps to debug this and other problems for wireless adapters. For Intel 5100 adapter testing - I boot now from GNOME LiveCD.
(In reply to comment #6) > Tried to add compat-wireless from Factory repository > > http://download.opensuse.org/repositories/driver:/wireless/openSUSE_Factory/ > > but it seems files there are for 2.6.30 kernel > > Can you please update compat-wireless files there for OpenSUSE 11.4 / Factory? > Or advise on other steps to debug this and other problems for wireless > adapters. If you run factory, there is no need for compat-wireless, hence it is disabled to be built for factory. So this looks like a problem in upstream. Could you try kernel-vanilla from factory and if it occurs there, please report a bug at http://bugzilla.intellinuxwireless.org/ More likely they will debug iwl issues faster than we.
I have tested same adapter with Fedora 14 beta, and reported bug: https://bugzilla.redhat.com/show_bug.cgi?id=640612 Some information on state of Intel iwlagn driver is very confusing and misleading. See in particular comment https://bugzilla.redhat.com/show_bug.cgi?id=640612#c26 from John W. Linville I can just add that problem was not fixed (and pretty much visible) in Fedora 14 final (release). So I do not think problem is specific to OpenSUSE. Would take a look at http://www.intellinuxwireless.org/ later. Infor on main page says: Note The iwlwifi driver has been merged into mainline kernel since 2.6.24. If you are using kernels after this release, please use the intree (drivers/net/wireless/iwlwifi) driver directly. Are you sure bugs still need to be reported at http://bugzilla.intellinuxwireless.org/ ?
(In reply to comment #8) > Infor on main page says: > Note The iwlwifi driver has been merged into mainline kernel since 2.6.24. If > you are using kernels after this release, please use the intree > (drivers/net/wireless/iwlwifi) driver directly. Yes, that's about code, not bugs. > Are you sure bugs still need to be reported at > http://bugzilla.intellinuxwireless.org/ ? Yes, they care about bugs there.
Reported bug: http://bugzilla.intellinuxwireless.org/show_bug.cgi?id=2268
(In reply to comment #10) > Reported bug: > http://bugzilla.intellinuxwireless.org/show_bug.cgi?id=2268 Thanks.
Ah, you forgot to note there that it's the same with 2.6.36 which we have in factory.
Hmm, I see intel doesn't care. What about the fedora guys, did they find anything useful?
no, there is also silence on Fedora bug. It seems none is using Intel Wireless? :confused: I have finally setup where can test peak throughput from Wi-Fi, copying file from NAS. Transfer speed is much higher comparing to copying from another PC/notebook - about 40MB/sec. on copying from NAS to local disk (Ethernet 1Gig connection). It is enough to use 100% of wireless bandwidth, even for 11n 300Mbps connection.
Can this be closed or is there still any problem?
.