Arch Linux

SomeRandomDude

Member

Registered: 2023-01-18

Posts: 5

[SOLVED] Inconsistent WiFi with NetworkManager

Hi! I've installed Arch on a new laptop using the installation script. WiFi afterwards was working as expected using systemd-networkd, but since I'm running KDE I wanted to have the network indicator on the taskbar using NetworkManager and I've had some issues ever since:

• Sometimes I need to toggle the WiFi on and off a couple of times for it to work.

• Sometimes a message appears with something along the lines "Credentials are required but none were provided"

• KDE often shows the WiFi stuck at Configuring interface.

While looking at journalctl -xe I've noticed this:

ene 18 12:50:12 ThinkPad wpa_supplicant[27658]: wlan0: SME: Authentication request to the driver failed

Output from "lspci -k"

03:00.0 Network controller: MEDIATEK Corp. MT7922 802.11ax PCI Express Wireless Network Adapter
        Subsystem: Lenovo Device e0c6
        Kernel driver in use: mt7921e
        Kernel modules: mt7921e

Also rfkill doesn't show the interface to be blocked, nor does systemd shows another network service running:

UNIT FILE                          STATE   PRESET
bluetooth.service                  enabled disabled
getty@.service                     enabled enabled
governor_at_boot.service           enabled disabled
governor_at_resume.service         enabled disabled
iwd.service                        enabled disabled
NetworkManager-dispatcher.service  enabled disabled
NetworkManager-wait-online.service enabled disabled
NetworkManager.service             enabled disabled
numlock.service                    enabled disabled
sddm.service                       enabled disabled
sshd.service                       enabled disabled
syncthing.service                  enabled disabled
systemd-timesyncd.service          enabled enabled
remote-fs.target                   enabled enabled
fstrim.timer                       enabled disabled

15 unit files listed.

Things I've tried

• Disabling dhcpcd.service

• Removing everything in /etc/NetworkManager/system-connections

• Added a config file with "wifi.scan-rand-mac-address=no"

Again, it works just fine with systemd-networkd the problems arise when i try to use NetworkManager

Why don't I just use systemd-networkd and call it a day?

Simply because I want that WiFi indicator on KDE (and the ability to manage my networks through the gui), and it looks like it only works trough NetworkManager.

Last edited by SomeRandomDude (2023-01-18 20:38:08)

Scimmia

Fellow

Registered: 2012-09-01

Posts: 13,729

Re: [SOLVED] Inconsistent WiFi with NetworkManager

You don't want both iwd and NetworkManager enabled. If you want to use iwd, configure NM to use it and it will launch it itself.

SomeRandomDude

Member

Registered: 2023-01-18

Posts: 5

Re: [SOLVED] Inconsistent WiFi with NetworkManager

Can confirm that disabling iwd.service worked, thanks!