[ltp] Intel 5100/5300 failures at 802.11n 5GHz?

[Jesse Sheidlower]

It turns out that this is a known issue; I don't know why I had so much
trouble finding it:

https://bugs.launchpad.net/ubuntu/maverick/+source/linux-firmware/+bug/630748

Basically, the N band was switched off intentionally in a recent update,
until Intel fixes some problems with the firmware. Before this, there
were the intermittent drops that characterized my earlier experience;
now, it's just shut off. You can re-enable it, but then you'll get the
dodgy performance.

Jesse

On Fri, Feb 18, 2011 at 08:55:29AM -0600, Jeffrey L. Taylor wrote:
> Quoting Jesse Sheidlower <jester@panix.com>:
> > 
> > I have two ThinkPads with Intel WiFi cards, a W500 with the 5100 AGN and
> > an X301 with the 5300 AGN. I've consistently had problems connecting to
> > 802.11n on the 5GHz band. I would either not see the SSID for this band,
> > or I would see it but be unable to connect to it.
> > 
> [snip]
> 
> Is the following relevant?  Windows installed Japanese drivers. poster deleted
> them and carefully re-installed from the US drivers directory.  Started
> behaving.
> 
> HTH,
>   Jeffrey
> 
> http://blog.badera.us/2010/11/solved-5ghz-80211n-networks-not-showing.html?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+FlipBitsNotBurgers+%28Flip+Bits+Not+Burgers%29
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