Thank you for your further investigation, heitbaum !
lshw -C network
Code
*-network
description: Wireless interface
physical id: 0
bus info: pci@0000:02:00.0
logical name: wlan0
version: 1a
serial: e0:d4:64:02:f0:49
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=iwlwifi driverversion=5.10.30 firmware=59.601f3a66.0 cc-a0-59.ucode latency=0 link=no multicast=yes wireless=IEEE 802.11
resources: irq:23 memory:a1300000-a1303fff
*-network
description: Ethernet interface
physical id: 0
bus info: pci@0000:03:00.0
logical name: eth0
version: 15
serial: 70:85:c2:ce:7a:86
size: 1Gbit/s
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=5.10.30 duplex=full firmware=rtl8168h-2_0.0.2 02/26/15 ip=192.168.178.6 latency=0 link=yes multicast=yes port=twisted pair speed=1Gbit/s
resources: irq:20 ioport:e000(size=256) memory:a1204000-a1204fff memory:a1200000-a1203fff
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lspci -knn | grep Net; rfkill list
Code
02:00.0 Network controller [0280]: Intel Corporation Wi-Fi 6 AX200 [8086:2723] (rev 1a)
0: hci0: bluetooth
Soft blocked: no
Hard blocked: no
1: phy0: wlan
Soft blocked: no
Hard blocked: no
I did a BIOS reset and tried both secure/insecure boot and Fast Boot enabled and disabled.
Do you have more ideas?
Not sure, if it is worth to waste your time - you surely have more important things to do...?
I could return it to the seller and buy a Wireless-AC 9560 which we know it works. What do you think?
Thanks!