I need setting up my USB Wi-Fi card ( realtek 8822bu )

itálison · Dec 8, 2023

Hello guys, i can't get my USB wi-fi card to work. According to my windows, and it works fine there, it is a Realtek 8822bu 802.11ac USB NIC. I did some research and i found no way to make it work.

Thx for any help in advance.

balanga · Dec 8, 2023

What does lsusb (from sysutils/usbutils) show?

itálison · Dec 8, 2023

balanga said:
What does lsusb (from sysutils/usbutils) show?

my lsusb showed this:

Code:

Bus /dev/usb Device /dev/ugen0.4: ID 0bda:b82c Realtek Semiconductor Corp. 
Bus /dev/usb Device /dev/ugen0.3: ID 1a2c:99f4 China Resource Semico Co., Ltd 
Bus /dev/usb Device /dev/ugen1.2: ID 8087:8008 Intel Corp. Integrated Rate Matching Hub
Bus /dev/usb Device /dev/ugen2.2: ID 8087:8000 Intel Corp. Integrated Rate Matching Hub
Bus /dev/usb Device /dev/ugen0.2: ID 046d:c08b Logitech, Inc. G502 SE HERO Gaming Mouse
Bus /dev/usb Device /dev/ugen2.1: ID 0000:0000 
Bus /dev/usb Device /dev/ugen0.1: ID 0000:0000 
Bus /dev/usb Device /dev/ugen1.1: ID 0000:0000

balanga · Dec 8, 2023

If you do a search for pid vid 0bda:b82c it confirms that you have a Realtek 8822bu 802.11ac USB NIC, so at least FreeBSD recognises what you have correctly... As to finding a driver for it, you probably need to search around.

Not sure if this will help https://wiki.freebsd.org/WiFi/Rtw88

balanga · Dec 8, 2023

Not sure if this will help, but you never know...

Thread 90953

itálison · Dec 8, 2023

balanga said:
If you do a search for pid vid 0bda:b82c it confirms that you have a Realtek 8822bu 802.11ac USB NIC, so at least FreeBSD recognises what you have correctly... As to finding a driver for it, you probably need to search around.

Not sure if this will help https://wiki.freebsd.org/

Yes, i have installed this driver before with pkg, but it did not work. I also tried to install iwm(4) and iwn(4) without success, following both this tutorials:

1.

https://man.freebsd.org/cgi/man.cgi...FreeBSD+11.0-RELEASE&arch=default&format=html

2.

iwn

man.freebsd.org

Code:

$ sudo kldload iwm
kldload: can't load iwm: No such file or directory

and now i'm at:

Code:

% sudo ifconfig wlan0 up list scan
Password:
ifconfig: interface wlan0 does not exist

balanga · Dec 9, 2023

iwn() doesn't sound appropriate for your Realtek card

DESCRIPTION
The iwn driver provides support for:

Intel Centrino Advanced-N 6200
Intel Centrino Advanced-N 6205
Intel Centrino Advanced-N 6230
Intel Centrino Advanced-N 6235
Intel Centrino Advanced-N + WiMAX 6250
Intel Centrino Ultimate-N 6300
Intel Centrino Wireless-N 100
Intel Centrino Wireless-N 105
Intel Centrino Wireless-N 130
Intel Centrino Wireless-N 135
Intel Centrino Wireless-N 1000
Intel Centrino Wireless-N 1030
Intel Centrino Wireless-N 2200
Intel Centrino Wireless-N 2230
Intel Centrino Wireless-N 4965
Intel Centrino Wireless-N 5100
Intel Centrino Wireless-N 6150
Intel Centrino Wireless-N 6200
Intel Centrino Wireless-N 6250
Intel Centrino Wireless-N 6250
Intel Centrino Wireless-N + WiMAX 6150
Intel Ultimate N WiFi Link 5300
Intel Wireless WiFi Link 4965
Intel WiFi Link 5100
Intel WiMAX/WiFi Link 5150
Intel WiMAX/WiFi Link 5350

jb1277976 · Dec 9, 2023

itálison said:
Hello guys, i can't get my USB wi-fi card to work. According to my windows, and it works fine there, it is a Realtek 8822bu 802.11ac USB NIC. I did some research and i found no way to make it work. Thx for any help in advance.

Simple ac doesn't work with FreeBSD and probably not with any BSD

itálison · Dec 9, 2023

jb1277976 said:
Simple ac doesn't work with FreeBSD and probably not with any BSD

All ac cards won't work? I have some hope to get mine working.

cracauer@ · Dec 9, 2023

itálison said:
All ac cards won't work? I have some hope to get mine working.

ac cards work, just not in ac mode.

NapoleonWils0n · Dec 9, 2023

Alfa usb wifi cards work really well on freebsd
you can pick them up for about £13 on aliexpress

edit your /etc/rc.conf and add the following code

Code:

wlans_run0="wlan0"
ifconfig_wlan0="WPA SYNDHCP"

reboot and you will see a new wlan0 network device

freebsd root dotfiles

itálison · Dec 9, 2023

NapoleonWils0n said:
Alfa usb wifi cards work really well on freebsd
you can pick them up for about £13 on aliexpress

edit your /etc/rc.conf and add the following code

Code:

wlans_run0="wlan0" ifconfig_wlan0="WPA SYNDHCP"

reboot and you will see a new wlan0 network device

freebsd root dotfiles

I have just tried that and ifconfig only showed this, after reboot:

Code:

% ifconfig -l
re0 lo0

itálison · Dec 9, 2023

cracauer@ said:
ac cards work, just not in ac mode.

How do i do that? Thx.

NapoleonWils0n · Dec 9, 2023

Have you tried some of the steps in the handbook

Code:

sudo ifconfig wlan0 up list scan

freebsd handbook wifi

itálison · Dec 9, 2023

NapoleonWils0n said:
Have you tried some of the steps in the handbook

Code:

sudo ifconfig wlan0 up list scan

freebsd handbook wifi

Yes, i did.

Got this output just right now:

Code:

% sudo ifconfig wlan0 up list scan
Password:
ifconfig: interface wlan0 does not exist

NapoleonWils0n · Dec 9, 2023

the run0 is for an alfa card, if you dont have an alfa card that code wont work

the re0 interface is RealTek interface
change run0 to re0 in the /etc/rc.conf

Code:

wlans_re0="wlan0"
ifconfig_wlan0="WPA SYNDHCP"

reboot, then try running

Code:

sudo ifconfig wlan0 up list scan

Makoto · Dec 9, 2023

Add this to your /etc/rc.conf
wlans_re0="wlan0"
ifconfig_wlan0="WPA DHCP"

Restart, then
sudo ifconfig wlan0 up list scan

itálison · Dec 9, 2023

NapoleonWils0n said:
the run0 is for an alfa card, if you dont have an alfa card that code wont work

the re0 interface is RealTek interface
change run0 to re0 in the /etc/rc.conf

Code:

wlans_re0="wlan0" ifconfig_wlan0="WPA SYNDHCP"

reboot, then try running

Code:

sudo ifconfig wlan0 up list scan

Yes i did the change. It's still off :

Code:

% sudo ifconfig wlan0 up list scan
Password:
ifconfig: interface wlan0 does not exist

I'm thinking this is driver related issue and there won't be a driver for my USB NIC.

NapoleonWils0n · Dec 9, 2023

the alfa wifi card i posted the link to works perfectly only £13 on aliexpress
as you say may be an issue with a driver for that card and yo may have to try another one

itálison · Dec 9, 2023

Makoto said:
Add this to your /etc/rc.conf
wlans_re0="wlan0"
ifconfig_wlan0="WPA DHCP"

Restart, then
sudo ifconfig wlan0 up list scan

Did not work.

Makoto · Dec 9, 2023

Maybe you need to install the driver realtek-re-kmod . I have a realtek pcie ethernet, interface re0, and I installed this driver and it works very well.

jb1277976 · Dec 10, 2023

itálison said:
Hello guys, i can't get my USB wi-fi card to work. According to my windows, and it works fine there, it is a Realtek 8822bu 802.11ac USB NIC. I did some research and i found no way to make it work. Thx for any help in advanc

I don't think i've seen this yet.
Can you run sysctl net.wlan.devices With the card plugged in. post the output here!

itálison · Dec 10, 2023

jb1277976 said:
I don't think i've seen this yet.
Can you run sysctl net.wlan.devices With the card plugged in. post the output here!

Here it is:

Code:

% sysctl net.wlan.devices
net.wlan.devices: 
% sudo sysctl net.wlan.devices
Password:
net.wlan.devices:

Still not working.

jb1277976 · Dec 10, 2023

itálison said:
Here it is:

Code:

% sysctl net.wlan.devices net.wlan.devices: % sudo sysctl net.wlan.devices Password: net.wlan.devices:

Still not working.

After the net.wlan.devices: there should be a iwlwifi or iwm or urtwn that means the card is recognized. Since it isn't there your card isn't detected and you can't use it. You can keep trying pulling your hair out like I did or get a comparable dongle/adapter.

Sorry I know that's not what you wanted to hear.

I tried 5 dongles cause I thought ac or bu worked but it didn't

I need setting up my USB Wi-Fi card ( realtek 8822bu )

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