After reinstall 15.5 and before updating kernel (from my script) :
user_install@15:~> uname -a
Linux 15 5.14.21-150500.53-default #1 SMP PREEMPT_DYNAMIC Wed May 10 07:56:26 UTC 2023 (b630043) x86_64 x86_64 x86_64 GNU/Linux
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Hardware information :
net.1: get network data
net interface: name = eth0, path = /class/net/eth0
type = 1
carrier = 1
hw_addr = 30:85:a9:28:16:f9
net device: path = /devices/pci0000:00/0000:00:1c.3/0000:04:00.0
net driver: name = atl1c, path = /bus/pci/drivers/atl1c
eth0: ethtool permanent hw address[6]: 30:85:a9:28:16:f9
ethtool private flags: 0
net interface: name = wlan0, path = /class/net/wlan0
type = 1
carrier = 0
hw_addr = ae:fe:bd:4b:98:8e
net device: path = /devices/pci0000:00/0000:00:1c.1/0000:03:00.0
net driver: name = ath9k, path = /bus/pci/drivers/ath9k
wlan0: ethtool permanent hw address[6]: dc:85:de:3a:b7:de
ethtool private flags: 0
net interface: name = lo, path = /class/net/lo
type = 772
carrier = 1
hw_addr = 00:00:00:00:00:00
lo: ethtool permanent hw address[6]: 00:00:00:00:00:00
GDRVINFO ethtool error: Operation not supported
ethtool private flags: 0
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inxi -a
user_install@15:~> inxi -na
Network:
Device-1: Qualcomm Atheros AR9485 Wireless Network Adapter vendor: AzureWave
driver: ath9k v: kernel pcie: gen: 1 speed: 2.5 GT/s lanes: 1
bus-ID: 03:00.0 chip-ID: 168c:0032 class-ID: 0280
IF: wlan0 state: down mac: aa:74:a5:39:0d:bf
Device-2: Qualcomm Atheros AR8151 v2.0 Gigabit Ethernet vendor: ASUSTeK
driver: atl1c v: kernel pcie: gen: 1 speed: 2.5 GT/s lanes: 1 port: d000
bus-ID: 04:00.0 chip-ID: 1969:1083 class-ID: 0200
IF: eth0 state: up speed: 1000 Mbps duplex: full mac: 30:85:a9:28:16:f9
Device-3: IMC Networks Atheros AR3012 Bluetooth 4.0 Adapter type: USB
driver: btusb bus-ID: 1-1.1:7 chip-ID: 13d3:3362 class-ID: e001
serial: Alaska Day 2006
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ip a
user_install@15:~> ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
link/ether 30:85:a9:28:16:f9 brd ff:ff:ff:ff:ff:ff
altname enp4s0
inet 192.168.130.80/24 brd 192.168.130.255 scope global dynamic noprefixroute eth0
valid_lft 85338sec preferred_lft 85338sec
3: wlan0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default qlen 1000
link/ether aa:74:a5:39:0d:bf brd ff:ff:ff:ff:ff:ff permaddr dc:85:de:3a:b7:de
altname wlp3s0
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systemctrl status network
Note that ipv6 is disabled in grub
user_install@15:~> sudo systemctl status network
We trust you have received the usual lecture from the local System
Administrator. It usually boils down to these three things:
#1) Respect the privacy of others.
#2) Think before you type.
#3) With great power comes great responsibility.
[sudo] password for root:
● NetworkManager.service - Network Manager
Loaded: loaded (/usr/lib/systemd/system/NetworkManager.service; enabled; vendor preset: disabled)
Active: active (running) since Sun 2024-09-01 08:33:13 CEST; 8h ago
Docs: man:NetworkManager(8)
Main PID: 1488 (NetworkManager)
Tasks: 3 (limit: 4915)
CGroup: /system.slice/NetworkManager.service
└─ 1488 /usr/sbin/NetworkManager --no-daemon
Sep 01 16:36:43 15 NetworkManager[1488]: [1725201403.0535] platform-linux: do-add-ip6-address[2: fe80::3285:a9ff:fe28:16f9]: failure 95 (Operation not supported)
Sep 01 16:36:45 15 NetworkManager[1488]: [1725201405.0555] ipv6ll[145861ef9e49b2d9,ifindex=2]: changed: no IPv6 link local address to retry after Duplicate Address Detection failures (back off)
Sep 01 16:36:55 15 NetworkManager[1488]: [1725201415.0659] platform-linux: do-add-ip6-address[2: fe80::3285:a9ff:fe28:16f9]: failure 95 (Operation not supported)
Sep 01 16:36:57 15 NetworkManager[1488]: [1725201417.0681] ipv6ll[145861ef9e49b2d9,ifindex=2]: changed: no IPv6 link local address to retry after Duplicate Address Detection failures (back off)
Sep 01 16:37:07 15 NetworkManager[1488]: [1725201427.0735] platform-linux: do-add-ip6-address[2: fe80::3285:a9ff:fe28:16f9]: failure 95 (Operation not supported)
Sep 01 16:37:09 15 NetworkManager[1488]: [1725201429.0738] ipv6ll[145861ef9e49b2d9,ifindex=2]: changed: no IPv6 link local address to retry after Duplicate Address Detection failures (back off)
Sep 01 16:37:19 15 NetworkManager[1488]: [1725201439.0846] platform-linux: do-add-ip6-address[2: fe80::3285:a9ff:fe28:16f9]: failure 95 (Operation not supported)
Sep 01 16:37:21 15 NetworkManager[1488]: [1725201441.0854] ipv6ll[145861ef9e49b2d9,ifindex=2]: changed: no IPv6 link local address to retry after Duplicate Address Detection failures (back off)
Sep 01 16:37:31 15 NetworkManager[1488]: [1725201451.0961] platform-linux: do-add-ip6-address[2: fe80::3285:a9ff:fe28:16f9]: failure 95 (Operation not supported)
Sep 01 16:37:33 15 NetworkManager[1488]: [1725201453.0985] ipv6ll[145861ef9e49b2d9,ifindex=2]: changed: no IPv6 link local address to retry after Duplicate Address Detection failures (back off)
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nmcli c show
user_install@15:~> nmcli c show
NAME UUID TYPE DEVICE
eth0 7ba00b1d-8cdd-30da-91ad-bb83ed4f7474 ethernet eth0
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nmcli d show
user_install@15:~> nmcli d show
GENERAL.DEVICE: eth0
GENERAL.TYPE: ethernet
GENERAL.HWADDR: 30:85:A9:28:16:F9
GENERAL.MTU: 1500
GENERAL.STATE: 100 (connected)
GENERAL.CONNECTION: eth0
GENERAL.CON-PATH: /org/freedesktop/NetworkManager/ActiveConnection/2
WIRED-PROPERTIES.CARRIER: on
IP4.ADDRESS[1]: 192.168.130.80/24
IP4.GATEWAY: 192.168.130.230
IP4.ROUTE[1]: dst = 192.168.130.0/24, nh = 0.0.0.0, mt = 100
IP4.ROUTE[2]: dst = 0.0.0.0/0, nh = 192.168.130.230, mt = 100
IP4.DNS[1]: 192.168.130.230
IP4.DOMAIN[1]: troll-hathor.nwk
IP6.GATEWAY: –
GENERAL.DEVICE: wlan0
GENERAL.TYPE: wifi
GENERAL.HWADDR: 12:FB:E2:35:F7:11
GENERAL.MTU: 1500
GENERAL.STATE: 30 (disconnected)
GENERAL.CONNECTION: –
GENERAL.CON-PATH: –
IP4.GATEWAY: –
IP6.GATEWAY: –
GENERAL.DEVICE: p2p-dev-wlan0
GENERAL.TYPE: wifi-p2p
GENERAL.HWADDR: (unknown)
GENERAL.MTU: 0
GENERAL.STATE: 30 (disconnected)
GENERAL.CONNECTION: –
GENERAL.CON-PATH: –
GENERAL.DEVICE: lo
GENERAL.TYPE: loopback
GENERAL.HWADDR: 00:00:00:00:00:00
GENERAL.MTU: 65536
GENERAL.STATE: 10 (unmanaged)
GENERAL.CONNECTION: –
GENERAL.CON-PATH: –
IP4.ADDRESS[1]: 127.0.0.1/8
IP4.GATEWAY: –
IP6.GATEWAY: –
==========================================================
lshw
*-network
description: Ethernet interface
product: AR8151 v2.0 Gigabit Ethernet
vendor: Qualcomm Atheros
physical id: 0
bus info: pci@0000:04:00.0
logical name: eth0
version: c0
serial: 30:85:a9:28:16:f9
size: 1Gbit/s
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress vpd bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes **driver=atl1c driverversion=5.14.21-150500.53-default** duplex=full ip=192.168.130.80 latency=0 link=yes multicast=yes port=twisted pair speed=1Gbit/s
resources: irq:29 memory:f7100000-f713ffff ioport:d000(size=128)
If that help