Thank you for taking the time to respond Tom, On Wednesday 07 May 2014 19:05:25 Tom Wijsman wrote: > On Wed, 7 May 2014 16:58:05 +0100 > > Mick <[email protected]> wrote: > > I have compiled on a 3.12.13-gentoo kernel: > Try the latest release candidate kernel (3.15-rc4) to make sure you > have most of the the latest iwlwifi changes by upstream; if you want > them all, and are not afraid of working with git, you can try to obtain > even later changes from here: > > http://git.kernel.org/cgit/linux/kernel/git/iwlwifi/iwlwifi-next.git
I will have some time the week after and I'll give this a go. > > CONFIG_IWLWIFI=m > > CONFIG_IWLDVM=m > > CONFIG_IWLWIFI_OPMODE_MODULAR=y > > Set CONFIG_IWLWIFI_DEBUG=y to see if debug information tells more. > > An option to try out too is CONFIG_IWLWIFI_DEBUG_EXPERIMENTAL_UCODE=y. > > > My /etc/conf.d/net section says: > > > > [...] > > wpa_supplicant_wlp4s0="-Dwext" > > [...] > > Use nl80211 instead, you'll want to enable this in your kernel as well. I recall trying this, but I think it would not connect at all. I may remember incorrectly though, so I will try again. > > proto=RSN > > key_mgmt=WPA-PSK > > pairwise=CCMP > > group=CCMP > > Try WPA2 AES if you can configure that and the rest of devices > connecting to the router support that, anything else can have a negative > effect on obtaining the higher N speeds; talking about router, which > kind of router is this and which firmware (eg. DD-WRT, ...) does it run? I thought that CCMP *is* using AES with CBC-MAC ... or are you saying that I should set up IEEE 802.1X EAP Authentication instead? A point of clarification: although the 5100 AGN NIC can do 108.11n, my AP will only do 108.11 a,b & g. Therefore I only want to achieve a stable 'g' connection at this moment. > > [ 514.377859] iwlwifi 0000:04:00.0 wlp4s0: disabling HT as WMM/QoS is > > not supported by the AP > > [ 514.377869] iwlwifi 0000:04:00.0 wlp4s0: disabling VHT as WMM/QoS > > is not supported by the AP > > Look if your AP allows you enable WMM, to gain more throughput. Will look into it, thanks. > > # modprobe -v iwlwifi power_save=0 power_level=3 11n_disable=1 > > insmod > > /lib/modules/3.12.13-gentoo/kernel/drivers/net/wireless/iwlwifi/iwlwifi. > > ko power_save=0 power_level=3 11n_disable=1 > > You shouldn't need all that, please try back with a plain modprobe. There is definitely a difference with the power_level= and 11n_disable= parameters. I tried this repeatedly to be quite certain about it. With the 11n_disable=1 the connection will de/re-authenticate every 7 minutes. With 11n_disable=0 it will de-authenticate and just sit there. However, it may perform differently with a newer kernel. I will check again and report back. > On a side note, I'm an owner of the same wireless card; currently I am > experiencing the following bug, which has to do with iwlwifi being > stuck in higher rates for one or another reason. > > https://bugzilla.kernel.org/show_bug.cgi?id=56581 I don't think that this is the same problem like mine, since I don't have 11n on the router. > There's something going on with the rate control algorithm these days... I seem to recall having CONFIG_MAC80211_RC_MINSTREL=y in the kernel. Is there some other setup to try? I will also try a different access point in the next few days to see if it makes a difference. -- Regards, Mick
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