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wireless instability?
by Robert G. Brown
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Dear All,
Has anyone else noticed a sudden flakiness in the iwl4965 driver as of about Monday? On Monday my wireless card worked fine to connect to my home network. On Wednesday it still worked, but not at home. On Thursday it stopped working. It sees the WAP, initiates the connection (in NetworkManager), appears to get through the auth (WPA-PSK) and send out its DHCP broadcast, but that broadcast fails to be picked up by the receiver and never shows up on the DHCP server. I've tried everything up to shutting down NetworkManager and running wpa_supplicant by hand; wpa_supplicant bombs too (and can be made to bomb quite verbosely, but it is very difficult to understand just what it doesn't like. This isn't "just" a state issue with the wireless adapter. If I boot the last F8 kernel instead of the current one, it works perfectly. So it appears to be a fairly recent change in the current kernel. It also survives hard poweroff's, multiple reboots, and I've tried rebooting back to the newer kernel after running it (with the connection working) with the older one in case the WAP has any sort of persistent memory that somehow got into a pathological state, all to no avail. I'm currently just running the older kernel, and hoping that the problem will go away on either the next kernel upgrade or when I move the whole system to F9 shortly, but I thought I'd ask as sometimes people on list have much wisdom and experience and might be able to point out a simple fix. rgb -- Robert G. Brown Phone(cell): 1-919-280-8443 Duke University Physics Dept, Box 90305 Durham, N.C. 27708-0305 Web: http://www.phy.duke.edu/~rgb Book of Lilith Website: http://www.phy.duke.edu/~rgb/Lilith/Lilith.php Lulu Bookstore: http://stores.lulu.com/store.php?fAcctID=877977 _______________________________________________ Dulug mailing list Dulug@... https://lists.dulug.duke.edu/mailman/listinfo/dulug |
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Re: wireless instability?
by Michael Ansel-2
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I'm running F9 with the -97 kernel, and I haven't had a problem yet. I
haven't upgraded to the -108 because it caused my nVidia card to die horribly (no new kernel module). As soon as MirrorManager gets back up and running properly, I'll try upgrading again and let you know what I find. Michael Sent from my iPhone On Aug 17, 2008, at 6:10 AM, "Robert G. Brown" <rgb@...> wrote: > Dear All, > > Has anyone else noticed a sudden flakiness in the iwl4965 driver as of > about Monday? On Monday my wireless card worked fine to connect to my > home network. On Wednesday it still worked, but not at home. On > Thursday it stopped working. It sees the WAP, initiates the > connection > (in NetworkManager), appears to get through the auth (WPA-PSK) and > send > out its DHCP broadcast, but that broadcast fails to be picked up by > the > receiver and never shows up on the DHCP server. > > I've tried everything up to shutting down NetworkManager and running > wpa_supplicant by hand; wpa_supplicant bombs too (and can be made to > bomb quite verbosely, but it is very difficult to understand just what > it doesn't like. > > This isn't "just" a state issue with the wireless adapter. If I boot > the last F8 kernel instead of the current one, it works perfectly. So > it appears to be a fairly recent change in the current kernel. It > also > survives hard poweroff's, multiple reboots, and I've tried rebooting > back to the newer kernel after running it (with the connection > working) > with the older one in case the WAP has any sort of persistent memory > that somehow got into a pathological state, all to no avail. > > I'm currently just running the older kernel, and hoping that the > problem > will go away on either the next kernel upgrade or when I move the > whole > system to F9 shortly, but I thought I'd ask as sometimes people on > list > have much wisdom and experience and might be able to point out a > simple > fix. > > rgb > > -- > Robert G. Brown Phone(cell): 1-919-280-8443 > Duke University Physics Dept, Box 90305 > Durham, N.C. 27708-0305 > Web: http://www.phy.duke.edu/~rgb > Book of Lilith Website: http://www.phy.duke.edu/~rgb/Lilith/Lilith.php > Lulu Bookstore: http://stores.lulu.com/store.php?fAcctID=877977 > > _______________________________________________ > Dulug mailing list > Dulug@... > https://lists.dulug.duke.edu/mailman/listinfo/dulug _______________________________________________ Dulug mailing list Dulug@... https://lists.dulug.duke.edu/mailman/listinfo/dulug |
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Re: wireless instability?
by Robert G. Brown
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On Sun, 17 Aug 2008, Michael Ansel wrote:
> I'm running F9 with the -97 kernel, and I haven't had a problem yet. I > haven't upgraded to the -108 because it caused my nVidia card to die horribly > (no new kernel module). As soon as MirrorManager gets back up and running > properly, I'll try upgrading again and let you know what I find. I appreciate it. Although from what you say, I should probably flash up to F9. It's just a bit of a pain because I have things nicely set up with F8. rgb > > Michael > > Sent from my iPhone > > On Aug 17, 2008, at 6:10 AM, "Robert G. Brown" <rgb@...> wrote: > >> Dear All, >> >> Has anyone else noticed a sudden flakiness in the iwl4965 driver as of >> about Monday? On Monday my wireless card worked fine to connect to my >> home network. On Wednesday it still worked, but not at home. On >> Thursday it stopped working. It sees the WAP, initiates the connection >> (in NetworkManager), appears to get through the auth (WPA-PSK) and send >> out its DHCP broadcast, but that broadcast fails to be picked up by the >> receiver and never shows up on the DHCP server. >> >> I've tried everything up to shutting down NetworkManager and running >> wpa_supplicant by hand; wpa_supplicant bombs too (and can be made to >> bomb quite verbosely, but it is very difficult to understand just what >> it doesn't like. >> >> This isn't "just" a state issue with the wireless adapter. If I boot >> the last F8 kernel instead of the current one, it works perfectly. So >> it appears to be a fairly recent change in the current kernel. It also >> survives hard poweroff's, multiple reboots, and I've tried rebooting >> back to the newer kernel after running it (with the connection working) >> with the older one in case the WAP has any sort of persistent memory >> that somehow got into a pathological state, all to no avail. >> >> I'm currently just running the older kernel, and hoping that the problem >> will go away on either the next kernel upgrade or when I move the whole >> system to F9 shortly, but I thought I'd ask as sometimes people on list >> have much wisdom and experience and might be able to point out a simple >> fix. >> >> rgb >> >> -- >> Robert G. Brown Phone(cell): 1-919-280-8443 >> Duke University Physics Dept, Box 90305 >> Durham, N.C. 27708-0305 >> Web: http://www.phy.duke.edu/~rgb >> Book of Lilith Website: http://www.phy.duke.edu/~rgb/Lilith/Lilith.php >> Lulu Bookstore: http://stores.lulu.com/store.php?fAcctID=877977 >> >> _______________________________________________ >> Dulug mailing list >> Dulug@... >> https://lists.dulug.duke.edu/mailman/listinfo/dulug > > _______________________________________________ > Dulug mailing list > Dulug@... > https://lists.dulug.duke.edu/mailman/listinfo/dulug -- Robert G. Brown Phone(cell): 1-919-280-8443 Duke University Physics Dept, Box 90305 Durham, N.C. 27708-0305 Web: http://www.phy.duke.edu/~rgb Book of Lilith Website: http://www.phy.duke.edu/~rgb/Lilith/Lilith.php Lulu Bookstore: http://stores.lulu.com/store.php?fAcctID=877977 _______________________________________________ Dulug mailing list Dulug@... https://lists.dulug.duke.edu/mailman/listinfo/dulug |
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