Bug 699434
Summary: | Wireless very slow with Intel 802.11n (Intel PRO/Wireless 4965 AGN) | ||
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Product: | [Fedora] Fedora | Reporter: | Manuel Rego <rego> |
Component: | kernel | Assignee: | Stanislaw Gruszka <sgruszka> |
Status: | CLOSED CURRENTRELEASE | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
Severity: | unspecified | Docs Contact: | |
Priority: | unspecified | ||
Version: | rawhide | CC: | dcbw, gansalmon, itamar, jklimes, jonathan, kernel-maint, linville, madhu.chinakonda, sgruszka |
Target Milestone: | --- | Keywords: | Reopened |
Target Release: | --- | ||
Hardware: | x86_64 | ||
OS: | Linux | ||
Whiteboard: | |||
Fixed In Version: | Doc Type: | Bug Fix | |
Doc Text: | Story Points: | --- | |
Clone Of: | Environment: | ||
Last Closed: | 2012-02-02 17:21:20 UTC | Type: | --- |
Regression: | --- | Mount Type: | --- |
Documentation: | --- | CRM: | |
Verified Versions: | Category: | --- | |
oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
Cloudforms Team: | --- | Target Upstream Version: | |
Embargoed: |
Description
Manuel Rego
2011-04-25 16:02:48 UTC
Reassigning to kernel to see if there are any changes about this. Manuel, can you test compat-wireless-next from http://people.redhat.com/sgruszka/compat_wireless.html ? It include some iwl4965 patches that could possibly fix this problem, please give it a try and report back. Also, patches which could fix this problem, are already in 3.0-x i.e rawhide kernel. Closing due to lack of response ... (In reply to comment #2) > Manuel, can you test compat-wireless-next from > http://people.redhat.com/sgruszka/compat_wireless.html ? It include some > iwl4965 patches that could possibly fix this problem, please give it a try and > report back. I've tested it and I don't notice any change in my wireless connection (I still the line disabling N to have a common wireless connection working). I've tried to upgrade to rawhide without success, so I think that I can't help more for the moment. I hope it's fixed in future Fedora 16. Did you try compat-wireless-next or just compat-wireless? I tested compat-wireless-next, but I had problems to restart my laptop. I was able to restart it only with console, and then use "yum update" there, after that my laptop restart properly but wireless keep working slow. Once I upgraded to rawhide laptop doesn't start properly anymore. Not sure if this is the right bug to post to, but after installing Fedora 15 on my Sony Vaio VGN-SZ680, which has the Intel PRO/Wireless 4965 chipset, 802.11n "N" networking doesn't seems to work any more. 802.11g "G" access points are visible, and work, but the "N" APs have disappeared, and even if I try to connect directly to 'hidden' "N" APs, it tries and fails repeatedly, such that no "N" networking works. Unfortunately I'm not able to reproduce this problem, my iwl4965 works pretty well on 11n network. Maybe this problem depends on AP type you are using, please provide your AP type and settings, perhaps I'll be able to get the same AP. If not I'll asking for more verbose debugging information. In my case I'm using a Fonera 2.0n, more info here: http://wiki.fon.com/wiki/Fonera_2.0n Thanks for the reply, but for some reason it is actually *all* the 11n networks. No 11n APs show up at all (there are about 10), only 11g APs. One other thing, this seems to have happened after one of the routine YUM updates from Fedora. 11n used to work fine on my F15 instance. Now, at some point during the last few weeks, all the 11n APs disappeared. Even when I try to connect to my own Cisco 11n AP directly as a 'hidden' network, my Fedora instance keeps throwing the WPA authentication dialog up again and again, repeatedly, never successfully connecting. All the other WIFI devices in my house connect to the same Cisco 11n AP fine. My F15 instance only sees and works with Gs. If you do as root iwlist wlan5 scan | grep SSID does it show other APs? You can use "yum history info LATEST_ID" (see "yum history list" to see transaction IDs) to check if there was update of NetworkManager . (In reply to comment #12) > iwlist wlan5 scan | grep SSID Instead of wlan5 use whatever iwconfig show. Yes, it shows all the 802.11*G* APs, but not any of the 11n APs (there are at least 10 11n APs that should show up, including mine). Notice all of the APs are 2.4 GHZ. Here is the output: [root@fedora-15 ~]# iwlist wlan0 scan | grep -B 3 SSID Frequency:2.437 GHz (Channel 6) Quality=34/70 Signal level=-76 dBm Encryption key:on ESSID:"kathleen" -- Frequency:2.437 GHz (Channel 6) Quality=23/70 Signal level=-87 dBm Encryption key:on ESSID:"badcats" -- Frequency:2.462 GHz (Channel 11) Quality=44/70 Signal level=-66 dBm Encryption key:on ESSID:"Adrienne" -- Frequency:2.462 GHz (Channel 11) Quality=62/70 Signal level=-48 dBm Encryption key:on ESSID:"ProNet" -- Frequency:2.412 GHz (Channel 1) Quality=21/70 Signal level=-89 dBm Encryption key:on ESSID:"CherryBomb" -- Frequency:2.417 GHz (Channel 2) Quality=30/70 Signal level=-80 dBm Encryption key:on ESSID:"MacGruber" -- Frequency:2.427 GHz (Channel 4) Quality=23/70 Signal level=-87 dBm Encryption key:on ESSID:"Superfly" -- Frequency:2.447 GHz (Channel 8) Quality=23/70 Signal level=-87 dBm Encryption key:on ESSID:"frognet-LR" -- Frequency:2.462 GHz (Channel 11) Quality=22/70 Signal level=-88 dBm Encryption key:on ESSID:"money" -- Frequency:2.457 GHz (Channel 10) Quality=23/70 Signal level=-87 dBm Encryption key:on ESSID:"forbin project" -- Frequency:2.412 GHz (Channel 1) Quality=24/70 Signal level=-86 dBm Encryption key:on ESSID:"Dublin" -- Frequency:2.412 GHz (Channel 1) Quality=23/70 Signal level=-87 dBm Encryption key:on ESSID:"2987" -- Frequency:2.437 GHz (Channel 6) Quality=20/70 Signal level=-90 dBm Encryption key:off ESSID:"NETGEAR" -- Frequency:2.462 GHz (Channel 11) Quality=20/70 Signal level=-90 dBm Encryption key:on ESSID:"L-Apple-A5" In regard to your second point about when NetworkManager was last updated by YUM, it looks like it was on August 3rd: [root@localhost ~]# yum history info 36 Loaded plugins: langpacks, presto, refresh-packagekit Transaction ID : 36 Begin time : Wed Aug 3 19:20:37 2011 Begin rpmdb : 2259:87ec7f7cd744cd2e06b9876fcb7dc74717b7e996 End time : 19:27:48 2011 (7 minutes) End rpmdb : 2260:d5b00b09760565fc3fadb7d00f7ccb7e8580b27c User : tlp <tlp> Return-Code : Success Command Line : update Transaction performed with: Installed rpm-4.9.0-9.fc15.i686 Updated yum-3.2.29-7.fc15.noarch Installed yum-metadata-parser-1.1.4-4.fc15.i686 Installed yum-presto-0.6.2-3.fc15.noarch Packages Altered: Updated NetworkManager-1:0.8.9997-5.git20110702.fc15.i686 Update 1:0.8.9997-6.git20110721.fc15.i686 Updated NetworkManager-glib-1:0.8.9997-5.git20110702.fc15.i686 Update 1:0.8.9997-6.git20110721.fc15.i686 Updated NetworkManager-gnome-1:0.8.9997-5.git20110702.fc15.i686 Update 1:0.8.9997-6.git20110721.fc15.i686 Updated NetworkManager-openvpn-1:0.8.999-1.fc15.i686 Update 1:0.8.9997-2.git20110721.fc15.i686 Updated NetworkManager-pptp-1:0.8.999-1.fc15.i686 Update 1:0.8.999-2.git20110721.fc15.i686 Updated NetworkManager-vpnc-1:0.8.999-2.fc15.i686 Update 1:0.8.999-3.git20110721.fc15.i686 [... etc.. ] Seems this is scanning problem, please open separate bug for it, and assaing it to me. (In reply to comment #10) > In my case I'm using a Fonera 2.0n, more info here: > http://wiki.fon.com/wiki/Fonera_2.0n Looks cool. However I'm going to order to TL-WR1043ND , because I have 3 separate bug reports where this AP cause troubles (with Open-Wrt firmware). Hopefully one of these problems could be also a issue here ... (In reply to comment #17) > (In reply to comment #10) > > In my case I'm using a Fonera 2.0n, more info here: > > http://wiki.fon.com/wiki/Fonera_2.0n > > Looks cool. However I'm going to order to TL-WR1043ND , because I have 3 > separate bug reports where this AP cause troubles (with Open-Wrt firmware). > Hopefully one of these problems could be also a issue here ... I'm having less troubles since I changed the configuration of my wireless network to WPA2 (AES). Now, it seems that everything is working right, even without the workaround at /etc/modprobe.d/intel-80211n.conf file. So, maybe the problem were just with WPA or it was fixed in some upgrade now I'm running kernel 2.6.40. Closing this out. The last comment was 5 months ago and indicated things were working now. |