Higher wifi packet loss than windows (mt7921)

autarch · 2026-04-29 12:53:54

As i said in the title, i weirdly see no wifi packet loss in any device my home but my linux. Its the same pc, same router but different behaviours in windows and linux.

My PC:

HP Victus 16 s-0008nt

Wifi Card: Mediatek mt7921

Used driver: mt7921e

Router: Xiaomi ax3000t with openwrt

Distro: Arch

NetworkManager as my network manager

Unbound as my dns resolver

What i did:

Tried zbowling's mt76 driver fixes (github.com/zbowling/mt7925)

Disabled wifi power saving

Disabled aspm

Tried different dns' and its resolvers

None of these fixed it. Maybe you can think for a router issue but i think this is not much of a possibility. Because this issue is absent in windows. I think its a driver issue. Do anyone know a fix?

seth · 2026-04-29 15:39:13

3rd link below. Mandatory.
Disable it (it's NOT the BIOS setting!) and reboot windows and linux twice for voodo reasons.

As a sanity check please post the output of

find /etc/systemd -type l -exec test -f {} \; -print | awk -F'/' '{ printf ("%-40s | %s\n", $(NF-0), $(NF-1)) }' | sort -f

autarch · 2026-04-30 13:14:57

i still have the same issue but here is the output

autovt@.service                          | system
avahi-daemon.service                     | multi-user.target.wants
avahi-daemon.socket                      | sockets.target.wants
bluetooth.service                        | bluetooth.target.wants
cups.path                                | multi-user.target.wants
cups.service                             | printer.target.wants
cups.socket                              | sockets.target.wants
dbus-org.bluez.service                   | system
dbus-org.fedoraproject.FirewallD1.service | system
dbus-org.freedesktop.Avahi.service       | system
dbus-org.freedesktop.nm-dispatcher.service | system
dbus-org.freedesktop.timesync1.service   | system
dbus-org.rnd2.cpupower_gui.helper.service | system
default.target                           | system
display-manager.service                  | system
firewalld.service                        | multi-user.target.wants
fstrim.timer                             | timers.target.wants
getty@tty1.service                       | getty.target.wants
gnome-keyring-daemon.socket              | sockets.target.wants
lactd.service                            | multi-user.target.wants
NetworkManager.service                   | multi-user.target.wants
NetworkManager-wait-online.service       | network-online.target.wants
ntpd.service                             | multi-user.target.wants
nvidia-persistenced.service              | multi-user.target.wants
nvidia-powerd.service                    | multi-user.target.wants
p11-kit-server.socket                    | sockets.target.wants
pipewire-pulse.socket                    | sockets.target.wants
pipewire-session-manager.service         | user
pipewire.socket                          | sockets.target.wants
remote-fs.target                         | multi-user.target.wants
speech-dispatcher.socket                 | sockets.target.wants
systemd-timesyncd.service                | sysinit.target.wants
systemd-userdbd.socket                   | sockets.target.wants
unbound.service                          | multi-user.target.wants
wireplumber.service                      | pipewire.service.wants
xdg-user-dirs.service                    | graphical-session-pre.target.wants

seth · 2026-04-30 15:36:33

No concurrent services, do you connect to a 2.4GHz AP?
Do you have/use bluetooth active?

Please post your complete system journal for the boot after some package loosing traffic

sudo journalctl -b | curl -s -H "Accept: application/json, */*" --upload-file - 'https://paste.c-net.org/'

autarch · 2026-05-01 08:06:03

i think i've solved the issue. i just set my network manager backend to iwd from wpa-supplicant and didnt face any loss for 30 minutes (before it was like once in 3 minutes)
edit or create /etc/NetworkManager/conf.d/wifi-backend.conf:

[device]
wifi.backend=iwd

maybe disabling fast startup solved but i cant select the exact one that solved the problem so people can try both

Last edited by autarch (2026-05-01 08:30:38)

Arch Linux

#1 2026-04-29 12:53:54

Higher wifi packet loss than windows (mt7921)

#2 2026-04-29 15:39:13

Re: Higher wifi packet loss than windows (mt7921)

#3 2026-04-30 13:14:57

Re: Higher wifi packet loss than windows (mt7921)

#4 2026-04-30 15:36:33

Re: Higher wifi packet loss than windows (mt7921)

#5 2026-05-01 08:06:03

Re: Higher wifi packet loss than windows (mt7921)

Board footer