I am using buster with KDE and I seem to be having some wifi issues. Internet connection seems stable to me, but looking in journal I keep getting these messages
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NetworkManager[974]: <warn> [1603235136.9130] sup-iface[0x563fe53c78b0,wlo1]: connection disconnected (reason -4)
wpa_supplicant[972]: dbus: wpa_dbus_property_changed: no property SessionLength in object /fi/w1/wpa_supplicant1/Interfaces/1
NetworkManager[974]: <warn> [1603282864.9538] sup-iface[0x563fe53c78b0,wlo1]: connection disconnected (reason -3)
NetworkManager[974]: <warn> [1603282872.4462] sup-iface[0x563fe53c7a10,wlo1]: connection disconnected (reason -4)
wpa_supplicant[972]: dbus: wpa_dbus_property_changed: no property SessionLength in object /fi/w1/wpa_supplicant1/Interfaces/3
Looking in
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systemctl cat wpa_supplicant
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[Unit]
Description=WPA supplicant
Before=network.target
After=dbus.service
Wants=network.target
[Service]
Type=dbus
BusName=fi.w1.wpa_supplicant1
ExecStart=/sbin/wpa_supplicant -u -s -O /run/wpa_supplicant
[Install]
WantedBy=multi-user.target
Alias=dbus-fi.w1.wpa_supplicant1.service
All my networks are managed by network manager and I only use wifi, looking in /etc/network/interfaces shows
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# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).
#source /etc/network/interfaces.d/*
# The loopback network interface
auto lo
iface lo inet loopback
#auto eno1
#iface eno1 inet dhcp
Now for what network device I use
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sudo lshw -class network
*-network
description: Wireless interface
product: QCA9565 / AR9565 Wireless Network Adapter
vendor: Qualcomm Atheros
physical id: 0
bus info: pci@0000:07:00.0
logical name: wlo1
version: 01
serial: a4:db:30:2b:14:5d
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list rom ethernet physical wireless
configuration: broadcast=yes driver=ath9k driverversion=4.19.0-12-amd64 firmware=N/A ip=192.168.1.105 latency=0 link=yes multicast=yes wireless=IEEE 802.11
resources: irq:16 memory:c3500000-c357ffff memory:c3580000-c358ffff
Running on
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Linux HP2000 4.19.0-12-amd64 #1 SMP Debian 4.19.152-1 (2020-10-18) x86_64 GNU/Linux