Reported on: https://forums.kali.org/showthread.php?31126-No-aircrack-ng-compatibility-with-rt2800lib-devices-on-newer-kernels-%28-gt-4-2%29-!-!

since this seems to be a big Problem that comes with the new release of the 2016 Kali Version I think many users using rt2800 driver compatible chipsets would love to see a solution.

So far the new Kali Version is useless for Wifi Penetration Testing cause all you get for example from reaver is

Waitining for beacon.... and thats it until you get the message "failed to associate with AP...", also injection does not work when tested.

So I searched the net for a solution but all I found was more users crying about there ALFA Adapters not working on the 2016 Kali and no solution in sight.

apt-get update && apt-get dist-upgrade didnt solve the bug, so I think nobody in the Kali Team recognized it so far.

Then I found someone that reminded me of Shinichi Mochizuki, the men behind the confirmation of the ABC conjecture, the problem is no one understands his confirmation, but it seems confirmed

The solution for our Problem looks like this

This will help you. It restores aircrack-ng compatibility with rt2800lib devices on newer kernels (> 4.2)

drivers/net/wireless/rt2x00/rt2800lib.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index 9524564..285acc2 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -1490,7 +1490,7 @@ void rt2800_config_filter(struct rt2x00_dev *rt2x00dev,
!(filter_flags & FIF_FCSFAIL));
rt2x00_set_field32(&reg, RX_FILTER_CFG_DROP_PHY_ERROR,
!(filter_flags & FIF_PLCPFAIL));

• rt2x00_set_field32(&reg, RX_FILTER_CFG_DROP_NOT_TO_ME, 1);

• rt2x00_set_field32(&reg, RX_FILTER_CFG_DROP_NOT_TO_ME, 0);
  rt2x00_set_field32(&reg, RX_FILTER_CFG_DROP_NOT_MY_BSSD, 0);
  rt2x00_set_field32(&reg, RX_FILTER_CFG_DROP_VER_ERROR, 1);
  rt2x00_set_field32(&reg, RX_FILTER_CFG_DROP_MULTICAST,
  --
  2.7.0

So we seem to have a solution for our problem but how to hell am I suppose to use it. This aint lines to put in terminal and execute!

So we need some specialists to translate exactly step by step how to use the solution presented above.

I think this can make many many ALFA users very happy