# Create file /etc/modprobe.d/iwl.conf
# vim /etc/modprobe.d/iwl.conf
options iwlwifi 11n_disable=1
options iwlwifi swcrypto=0
options iwlwifi bt_coex_active=0
options iwlwifi power_save=0
options iwlwifi uapsd_disable=1
options iwlmvm power_scheme=1
# reboot system