On 09/20/2011 04:38 PM, Chiefdome wrote:

I tried at least wireless-next but the adapter isn't showing up.
Where to get more log files and stuff?
Isnt this adapter good supported by the rtl8192cu driver or where is the problem?

For the mainline kernel to work with 802.11n-only APs and to reconnect after an 
initial try, your kernel needs the following patches:

commit bac2555c6d86387132930af4d14cb47c4dd3f4f7
Author: George [off-list ref]
Date:   Sat Sep 3 10:58:48 2011 -0500

     rtlwifi: Fix problem when switching connections

     The driver fails to clear encryption keys making it impossible
     to switch connections.

     Signed-off-by: George [off-list ref]
     Signed-off-by: Larry Finger [off-list ref]
     Cc: Stable [off-list ref]        [2.6.39+]
     Signed-off-by: John W. Linville [off-list ref]

commit 3401dc6eba788ebc7c14ce51018d775b1c263399
Author: George [off-list ref]
Date:   Sat Sep 3 10:58:47 2011 -0500

     rtlwifi: rtl8192su: Fix problem connecting to HT-enabled AP

     The driver fails to connect to 802.11n-enabled APs. The patch fixes
     Bug #42262.

     Signed-off-by: George [off-list ref]
     Signed-off-by: Larry Finger [off-list ref]
     Cc: Stable [off-list ref]        [2.6.39+]
     Signed-off-by: John W. Linville [off-list ref]

Both of these are in wireless-testing, and were just merged into the mainline 
kernel. In addition, they were merged with the 3.0 stable tree today.

Both should be in wireless-next, but as I recall, you were not able to test with 
that tree.

With the updated mainline kernel, the link is stable and performance is 
acceptible with netperf TCP_STREAM (TX) at 20.5 +/- 4.8 Mbps and TCP_MAERTS (RX) 
of 21.7 +/- 3.8 Mbps. These numbers are not spectacular, but they will do.

Larry