On Fri, 2018-09-14 at 12:36 +0200, Jason A. Donenfeld wrote:

Hi again,

Hi Jason,

I can confirm that this issue is still present in 4.18. I'm receiving
very frequent disconnections:

[  304.707603] wlan0: deauthenticated from <> (Reason:
6=CLASS2_FRAME_FROM_NONAUTH_STA)

The last working kernel was in the 4.16 series. Any ideas?

Do you consistently *not* see this with 4.16? Any chance you could
bisect the problem?

Other information could also be helpful, please see:
https://wireless.wiki.kernel.org/en/users/drivers/iwlwifi/debugging

And, if possible, please open a bug in bugzilla and set 
linuxwifi@intel.com as the assignee.

Thanks!

--
Cheers,
Luca.