let me give you some introduction:
I bought the nano months ago and pentested some of my old routers. Unfortunately I had to realize that the nano only can handle the 2.4 GHz frequency, but no problem, great product anyway.
Most newer routers support both 2.4 to 5 GHz, so I decided to buy the tetra to continue pentesting with my network that has one brand new access point with both frequencies up at the same time.
The start with the tetra was great, because with the "Recon" tab it's possible to scan both frequencies at the same time. Sorry I'm not a fan of the "Modules" so I always continue with an ssh connection and use the aircrack-ng tools.
Here comes the question:
Why can I scan my networks (2.4 and 5 GHz on same AP), but the injection does not work on the 5 GHz frequency? I know that the MAC Address changes in the last character, but I started to airodump my 5 GHz and fixed the channel (also tried different ones), but it is still not working. What am I doing wrong? Screenshots included.
Scan results: http://i.imgur.com/2QV8OkJ.png
Second test with another router (also dual frequencies):
I'm wondering how I can capture my WPA2 handshake when I'm connected to the 2.4 GHz frequency and when I try to deauth my phone for example, it will reconnect to the 5 GHz frequency without giving the handshake. Same goes if I'm connected to the 5 GHz first and deauth it, the reconnect goes to the 2.4 GHz. I know that is normal behavior for modern devices, but can you please give me some advices how to handle this? Maybe a script with a loop of switching frequenies and deauth could work?