My Wifi adapter disconnects every 5-10 minutes. I have read that this is a common issue for some users, specially if your card is Intel.
Some information about my machine:
$ lspci|grep Network
02:00.0 Network controller: Intel Corporation Wireless 3165 (rev 79)
$ uname -a
Linux rocket 4.15.0-50-generic #54-Ubuntu SMP Mon May 6 18:46:08 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 18.04.1 LTS
Release: 18.04
Codename: bionic
Log
This is the output of dmesg just before disconnection:
[ 1042.712511] wlp2s0: deauthenticating from 8c:0c:90:08:dd:4c by local choice (Reason: 3=DEAUTH_LEAVING)
and this is the output after restarting the adapter with sudo service network-manager restart:
[ 2192.019982] iwlwifi 0000:02:00.0 wlp2s0: disabling HT/VHT due to WEP/TKIP use
[ 2192.020067] wlp2s0: associate with 8c:0c:90:08:dd:4c (try 1/3)
[ 2192.031051] wlp2s0: RX AssocResp from 8c:0c:90:08:dd:4c (capab=0x411 status=0 aid=2)
[ 2192.031802] wlp2s0: associated
[ 2192.082048] wlp2s0: Limiting TX power to 30 (30 - 0) dBm as advertised by 8c:0c:90:08:dd:4c
Attempted solutions
Many users suggest to edit /etc/modprobe.d/iwlwifi.conf to disable power management by adding this line:
options iwlwifi 11n_disable=1 power_save=0 power_level=5 bt_coex_active=0` at the end of
Others suggest to remove the module acer_wmi:
sudo modprobe -r acer_wmi
Others suggest to define the REGDOMAIN variable in /etc/default/crda:
sudo iw reg set US
sudo sed -i 's/^REG.*=$/&US/' /etc/default/crda
It also may be due to having two instances of wpa_supplicant:
systemctl list-units
If so, you can remove one of them:
systemctl disable NetworkManager-wait-online.service
systemctl disable net-auto-wired.service
systemctl disable net-auto-wireless.service
Finally, I tried to boot from an USB with Ubuntu 19.04, but the problem persists, the log messages are the same as above.
Anyway, I have tried these approaches, but they do not solve the problem, the wifi adapter disconnects randomly, always showing this message in the log:
[ 1042.712511] wlp2s0: deauthenticating from 8c:0c:90:08:dd:4c by local choice (Reason: 3=DEAUTH_LEAVING)
