So I followed the null-byte deauth and crack wifi password hacks, the thing is that while they worked, airodump-ng on my network only showed a specific set of devices including some sort of smart light and amazon alexa. Even knowing other device's ips I could deauth attack them, but they would always return 0 acks. However, my other devices such as the smart light would get booted off in no time. Now, I'm using mitmf and only the specific devices previously mentioned are appearing and being affected. Ettercap works for the same mentioned devices. I think this breaks down to the fact I have my main wifi gateway, then a wifi extender that splits its wifi into 2.4 and 5ghz. Does my router have some kind of protection that the extender removes? Is my gateway connection simply very fast and the extender is just slow enough for it to work? I have connected my phone to the extender's 2.4 channel and it would have some acks but after like a solid 2 mins of dosing it, the connection came back on the same wifi and I was unable to deauth it again. Dang sorry for the very long text and I am using a Ralink 5572 which I have tested on other networks and it can easily deauth.