cannot recognize wireless network card

[Joey_Chen]

Wireless network card: Intel ® Dual Band Wireless-AC 7265；

Using the command 'lspci' can detect the wireless network card, but the end displays (rev ff);

Firmware is stored in the "lib/firmware" directory

Using 'iwconfig' to output all information as' no wireless extensions. 'No generated network ports were found

01:00.0 Ethernet controller: Intel Corporation I211 Gigabit Network Connection (rev 03)
02:00.0 Ethernet controller: Intel Corporation I211 Gigabit Network Connection (rev 03)
03:00.0 Ethernet controller: Intel Corporation I211 Gigabit Network Connection (rev 03)
04:00.0 Ethernet controller: Intel Corporation I211 Gigabit Network Connection (rev 03)
05:00.0 Network controller: Intel Corporation Wireless 7265 (rev ff)
root@pve:~# ls /lib/firmware/ |grep 7265
iwlwifi-7265-17.ucode
iwlwifi-7265-17.ucode.xz
iwlwifi-7265D-29.ucode.xz
root@pve:~# iwconfig
lo        no wireless extensions.

enp1s0    no wireless extensions.

enp2s0    no wireless extensions.

eno1      no wireless extensions.

enp4s0    no wireless extensions.

vmbr0     no wireless extensions.

vmbr1     no wireless extensions.

vmbr2     no wireless extensions.

vmbr3     no wireless extensions.

 

[Richard]

Wireless network card: Intel ® Dual Band Wireless-AC 7265；

Using the command 'lspci' can detect the wireless network card, but the end displays (rev ff);

Firmware is stored in the "lib/firmware" directory

Using 'iwconfig' to output all information as' no wireless extensions. 'No generated network ports were found

01:00.0 Ethernet controller: Intel Corporation I211 Gigabit Network Connection (rev 03)
02:00.0 Ethernet controller: Intel Corporation I211 Gigabit Network Connection (rev 03)
03:00.0 Ethernet controller: Intel Corporation I211 Gigabit Network Connection (rev 03)
04:00.0 Ethernet controller: Intel Corporation I211 Gigabit Network Connection (rev 03)
05:00.0 Network controller: Intel Corporation Wireless 7265 (rev ff)
root@pve:~# ls /lib/firmware/ |grep 7265
iwlwifi-7265-17.ucode
iwlwifi-7265-17.ucode.xz
iwlwifi-7265D-29.ucode.xz
root@pve:~# iwconfig
lo        no wireless extensions.

enp1s0    no wireless extensions.

enp2s0    no wireless extensions.

eno1      no wireless extensions.

enp4s0    no wireless extensions.

vmbr0     no wireless extensions.

vmbr1     no wireless extensions.

vmbr2     no wireless extensions.

vmbr3     no wireless extensions.

Check via

lspci --nnk

whether proper kernel module is loaded. Check also the journal, find relevant messages e.g. by

journalctl | grep -i "wireless\|wifi"

 

[Joey_Chen]

Check via

lspci --nnk

whether proper kernel module is loaded. Check also the journal, find relevant messages e.g. by

journalctl | grep -i "wireless\|wifi"

After filtering out the excess PCI devices, the result is as follows, and an error message appears: 'Can't change power state from D3cold to D0 (config space inaccessible)'

root@pve:~# lspci -nnk
05:00.0 Network controller [0280]: Intel Corporation Wireless 7265 [8086:095a] (rev ff)
    Kernel modules: iwlwifi
root@pve:~# journalctl | grep -i "wireless\|wifi"
Apr 12 07:30:53 pve kernel: Intel(R) Wireless WiFi driver for Linux
Apr 12 07:30:54 pve kernel: iwlwifi 0000:05:00.0: can't change power state from D3cold to D0 (config space inaccessible)
Apr 12 07:30:54 pve kernel: iwlwifi 0000:05:00.0: can't change power state from D3cold to D0 (config space inaccessible)
Apr 12 07:30:54 pve kernel: iwlwifi 0000:05:00.0: HW_REV=0xFFFFFFFF, PCI issues?
Apr 12 07:30:54 pve kernel: iwlwifi: probe of 0000:05:00.0 failed with error -5
Apr 12 13:11:23 pve rz[44809]: [root] iwlwifi-7265-ucode-25.30.14.0.tgz/ZMODEM: 1099998 Bytes, 18525 BPS

 

[Richard]

root@pve:~# journalctl | grep -i "wireless\|wifi"
Apr 12 07:30:53 pve kernel: Intel(R) Wireless WiFi driver for Linux
Apr 12 07:30:54 pve kernel: iwlwifi 0000:05:00.0: can't change power state from D3cold to D0 (config space inaccessible)
Apr 12 07:30:54 pve kernel: iwlwifi 0000:05:00.0: can't change power state from D3cold to D0 (config space inaccessible)
Apr 12 07:30:54 pve kernel: iwlwifi 0000:05:00.0: HW_REV=0xFFFFFFFF, PCI issues?
Apr 12 07:30:54 pve kernel: iwlwifi: probe of 0000:05:00.0 failed with error -5
Apr 12 13:11:23 pve rz[44809]: [root] iwlwifi-7265-ucode-25.30.14.0.tgz/ZMODEM: 1099998 Bytes, 18525 BPS[/CODE]

WiFi driver iwlwifi cannot be loaded. Possibly a kernel, firmware, driver or hardware issue repectively a combination of them. As I next step I would try to check the situation when using plain Debian11 - if it works then try to install Proxmox on top of it. If not try other Distributions as Ubuntu etc. - if it does not work in any case it's probably a hard- or firmware issue.

 

[Joey_Chen]

WiFi driver iwlwifi cannot be loaded. Possibly a kernel, firmware, driver or hardware issue repectively a combination of them. As I next step I would try to check the situation when using plain Debian11 - if it works then try to install Proxmox on top of it. If not try other Distributions as Ubuntu etc. - if it does not work in any case it's probably a hard- or firmware issue.

During installation, the Debian system prompts that the iwlwifi driver is missing, but Ubuntu can be used normally without any problems.

 

[Richard]

During installation, the Debian system prompts that the iwlwifi driver is missing, but Ubuntu can be used normally without any problems.

That means unfortunately Debian's driver does not support this card. You may contact the card manufacturer and check if there driver exists for Debian or if it's possible to build your own driver.
Probably the more convenient approach is to by antother WiFi card (costs less tnan 20$).