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Tags: networking   wireless   18.04   connection  
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Title: My wifi cuts out after awhile
ID: /2018/05/12/My-wifi-cuts-out-after-awhile
Created: May 12, 2018    Edited:  June 12, 2020
Upload: November 24, 2022    Layout:  post
TOC: false    Navigation:  false    Copy to clipboard:  false

Turn off or enable power savings as illustrated below:

$ cat /etc/NetworkManager/conf.d/default-wifi-powersave-on.conf
wifi.powersave = 3
# Slow sleep fix:
#wifi.powersave = 2

What the values represent?


Intel specific answer

From this answer you can try:

You can fix it by running in terminal

sudo tee /etc/modprobe.d/iwlwifi-opt.conf <<< "options iwlwifi 11n_disable=1"

then reboot.

You can revert it by sudo rm /etc/modprobe.d/iwlwifi-opt.conf.

To keep the 802.11n, you can try the 11n_disable=8 option.

From this Q&A you can try:

sudo modprobe -r iwlwifi
sudo modprobe iwlwifi

If this works for the current session, it can be setup to run automatically on startup.

⇧ Upgraded to Ubuntu 18.04, but I still have old UI Is a clean install better than upgrading?  β‡©