Intel WIFI AX200 does not connect under Linux Ubuntu in Lenovo laptop Z50-75

[AmicX]

I run an intel WIFI AX200NGW card in a eight year old Lenovo laptop Z50-75. This laptop has a whitelist in bios to prevent to run almost any WIFI card except very few very slow whitelisted cards. So I installed a modded bios to remove this whitelist. I run a dual boot with Windows 10 and Linux Ubuntu 24.04 LTS. The AX200 connects under Windows perfectly with WLAN and Bluetooth devices. Under Ubuntu WLAN and Bluetooth both repeat to go on and off. While Bluetooth finds devices and can connect to them, the WLAN list of networks keeps empty. An external USB WLAN adapter shows several networks and can connect to them.

I googled more than 10 houres, but found no solution. Maybe here someone can help.

Some usefull info:

$ lsmod | grep iw iwlmvm                
864256  0 mac80211             
1728512  1 iwlmvm iwlwifi               
610304  1 iwlmvm cfg80211             
1339392  3 iwlmvm,iwlwifi,mac80211 

$ lspci -nn | grep Network 
03:00.0 Network controller [0280]: Intel Corporation Wi-Fi 6 AX200 [8086:2723] (rev 1a)

$ sudo lshw -C network   
*-network                         
Beschreibung: Ethernet interface        
Produkt: RTL8111/8168/8211/8411 PCI Express Gigabit Ethernet Controller
Hersteller: Realtek Semiconductor Co., Ltd.        
Physische ID: 0        
Bus-Informationen: pci@0000:02:00.0        
Logischer Name: enp2s0        
Version: 10        
Seriennummer: 28:d2:44:af:c9:9e        
Kapazität: 1Gbit/s        
Breite: 64 bits        
Takt: 33MHz        
Fähigkeiten: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation        
Konfiguration: autonegotiation=on broadcast=yes driver=r8169 driverversion=6.8.0-31-generic firmware=rtl8168g-3_0.0.1 04/23/13 latency=0 link=no multicast=yes port=twisted pair        
Ressourcen: irq:32 ioport:1000(Größe=256) memory:f0904000-f0904fff memory:f0900000-f0903fff   
*-network        
Beschreibung: Kabellose Verbindung        
Produkt: Wi-Fi 6 AX200        
Hersteller: Intel Corporation        
Physische ID: 0        
Bus-Informationen: pci@0000:03:00.0        
Logischer Name: wlp3s0        Version: 1a        
Seriennummer: 8c:c6:81:a0:85:61        
Breite: 64 bits        
Takt: 33MHz        
Fähigkeiten: pm msi pciexpress msix bus_master cap_list ethernet physical wireless        
Konfiguration: broadcast=yes driver=iwlwifi driverversion=6.8.0-31-generic firmware=77.ad46c98b.0 cc-a0-77.ucode latency=0 link=no multicast=yes wireless=IEEE 802.11        
Ressourcen: irq:35 memory:f0800000-f0803fff 

$ sudo dmesg | grep iwl > iwl.txt

See Attached File.

[RamyerM_Intel]

Hello AmicX, 

Thank you for posting in the communities. Kindly please allow us sometime to look into this for you and I promise to get back to you as soon as possible.

Ramyer M. 

Intel Customer Support Technician

[RamyerM_Intel]

Hello AmicX, 

Thank you for patiently waiting. Upon coordinating with our team, we would like to confirm some details that will help us with our investigation. Please share the following details:

1. Was the AX200NGW card originally installed in the laptop, or was it integrated later?
2. Were you able to reach out to Lenovo support about being unable to connect the AX200?
3. Has the firmware been updated? If it has not been done yet, we suggest proceeding with the update using the version specified in our article titled Linux* Support for Intel® Wireless Adapters

I will be waiting for your reply.

Ramyer M.

Intel Customer Support Technician

[RamyerM_Intel]

Hello AmicX, 

I am just following up on the information we requested. Feel free to share these details with us so we can help you with the Intel WIFI AX200. I will be waiting for your reply.

Ramyer M.

Intel Customer Support Technician