Comment 16 for bug 1802306

After extensive playing with iwlwifi, I could stop the issue by doing either:
 - modprobe iwlwifi 11n_disable=1
 - blacklist the v36 firmware /lib/firmware/iwlwifi-8265-36.ucode, driver picks v34 which seems to be stable

I tested the two releases of v36: 36.7596afd4.0 and 36.e91976c0.0, both expose the same issue.

Given the impact on speed, I've chose the second solution as a workaround.