Re: Problems associating with RTL8188CE

Tim Gardner
2011-12-15T18:41:31Z

On 12/14/2011 05:50 PM, Larry Finger wrote:
> Tim,
>
> I did the live test with the Dec. 14 build of 12.04 (64 bit). It
> connected with my WNDR3300 with no difficulty. I tested all 4 modes
> supported by the AP. All worked.
>
> I assume that an installation would work the same as the live version,
> but that is easy for you to test.
>
> Larry
>

Here are the 3 modes I was able to successfully test on my WNDR3300 as
an open AP:

* Up to 270Mbps at 2.4Ghz
11N Channel: 03/2.422Ghz
in this mode only the 11N SSID is beaconed.
iperf: 11.2 Mbps average over 120 seconds, high of 26.2 Mbps, low of 6.71

* Up to 270Mbps at 5Ghz & 54Mbps at 2.4Ghz
11N Channel: 36 / 5.180Ghz
11G Channel: auto
in this mode only the G beacon can be seen (which makes sense)
iperf: 14.3 Mbps average over 120 seconds, high of 28.5 Mbps, low of 8.97

* Up to 130Mbps at 2.4Ghz
11N Channel: 03/2.422Ghz
in this mode only the 11N SSID is beaconed.
iperf: 16.0 Mbps average over 120 seconds, high of 28.9 Mbps, low of 7.44

This mode would not acquire a beacon using the rtl8192ce:

* Up to 130Mbps at 5Ghz & 54Mbps at 2.4Ghz
11N Channel: 36 / 5.180Ghz
11G Channel: auto
in this mode no beacon can be seen.

I verified using a MacBook Air under OS/X that the N SSID was appearing
on the 5 Ghz channel, but couldn't see the G beacon. Maybe its a bug in
the WNDR3300.

rtg
--
Tim Gardner tim.gardner@canonical.com