How to make Intel wi-fi signal stronger in Ubuntu Gnome 16.04?

by Homero Barrocas S Esmeraldo   Last Updated March 12, 2018 16:02 PM

I am using ASUS N580VD-DM129T and I have iwlwifi driver for Intel(R) Dual Band Wireless AC 8265 in Linux Ubuntu 16.04 with Gnome.

The output when I run dmesg | grep iwlwifi is the following:

[    3.347436] iwlwifi 0000:03:00.0: enabling device (0000 -> 0002)
[    3.386096] iwlwifi 0000:03:00.0: Direct firmware load for iwlwifi-8265-33.ucode failed with error -2
[    3.388185] iwlwifi 0000:03:00.0: Direct firmware load for iwlwifi-8265-32.ucode failed with error -2
[    3.397339] iwlwifi 0000:03:00.0: loaded firmware version 31.560484.0 op_mode iwlmvm
[    3.412232] iwlwifi 0000:03:00.0: Detected Intel(R) Dual Band Wireless AC 8265, REV=0x230
[    3.472665] iwlwifi 0000:03:00.0: base HW address: 88:b1:11:5e:93:f4
[    3.550283] iwlwifi 0000:03:00.0 wlp3s0: renamed from wlan0

I think it is weird that the loading fails twice before succeeding and wonder if that's why the strength of the wi-fi signal is currently low (compared to the strength in Windows in the same machine).

I have tried changing some options in the iwlwifi module as suggested here. But it didn't work. More precisely, I added options iwlwifi 11n_disable=1 swcrypto=1 to the end of the file. Leaving me with the following content in the /etc/modprobe.d/iwlwifi.conf file:

remove iwlwifi \
(/sbin/lsmod | grep -o -e ^iwlmvm -e ^iwldvm -e ^iwlwifi | xargs /sbin/rmmod) \
&& /sbin/modprobe -r mac80211
options iwlwifi 11n_disable=1 swcrypto=1

Can anyone help me figuring out how to have a stronger signal strength in Linux?



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