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#1 2021-01-25 00:32:47

weilinear
Member
Registered: 2017-12-28
Posts: 12

Country setting for Intel Wifi

I recently got a Intel NUC (nuci5beh) with Intel Corporation Cannon Point-LP CNVi [Wireless-AC] (rev 30) wifi card (from lspci). I was trying to use hostapd to create a wifi hotspot with 5GHz but it always fails (2.4GHz works). I was searching online and found that my wifi has regulartory configuration as Global which disables all the 5G frequencies for AP mode. Surprisingly, the installation media I got works perfectly (it is also on kernel 5.10) with US as the country for the phy#0 (self-managed) when I call iw reg get.

I would like to ask what would be the correct way to set the country. I have tried all the things I could find online including
1. sudo iw reg set US
2. in /etc/modprobe.d/: options cfg80211 ieee80211_regdom="US"
3. /etc/default/crda: REGDOMAIN=US
4. COUNTRY=US crda (this fails with error -7)

And from all those above changes my iw reg get is always like this:

$ iw reg get                                                                                                                                                                                                                                                                                                                                                           [16:29:11]
global
country US: DFS-FCC
	(2400 - 2483 @ 40), (N/A, 30), (N/A)
	(5150 - 5250 @ 80), (N/A, 23), (N/A), AUTO-BW
	(5250 - 5350 @ 80), (N/A, 23), (0 ms), DFS, AUTO-BW
	(5470 - 5730 @ 160), (N/A, 23), (0 ms), DFS
	(5730 - 5850 @ 80), (N/A, 30), (N/A)
	(57240 - 71000 @ 2160), (N/A, 40), (N/A)

phy#0 (self-managed)
country 00: DFS-UNSET
	(2402 - 2437 @ 40), (6, 22), (N/A), AUTO-BW, NO-HT40MINUS, NO-80MHZ, NO-160MHZ
	(2422 - 2462 @ 40), (6, 22), (N/A), AUTO-BW, NO-80MHZ, NO-160MHZ
	(2447 - 2482 @ 40), (6, 22), (N/A), AUTO-BW, NO-HT40PLUS, NO-80MHZ, NO-160MHZ
	(5170 - 5190 @ 160), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, PASSIVE-SCAN
	(5190 - 5210 @ 160), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40PLUS, PASSIVE-SCAN
	(5210 - 5230 @ 160), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, PASSIVE-SCAN
	(5230 - 5250 @ 160), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40PLUS, PASSIVE-SCAN
	(5250 - 5270 @ 160), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40MINUS, PASSIVE-SCAN
	(5270 - 5290 @ 160), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40PLUS, PASSIVE-SCAN
	(5290 - 5310 @ 160), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40MINUS, PASSIVE-SCAN
	(5310 - 5330 @ 160), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40PLUS, PASSIVE-SCAN
	(5490 - 5510 @ 240), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40MINUS, PASSIVE-SCAN
	(5510 - 5530 @ 240), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40PLUS, PASSIVE-SCAN
	(5530 - 5550 @ 240), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40MINUS, PASSIVE-SCAN
	(5550 - 5570 @ 240), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40PLUS, PASSIVE-SCAN
	(5570 - 5590 @ 240), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40MINUS, PASSIVE-SCAN
	(5590 - 5610 @ 240), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40PLUS, PASSIVE-SCAN
	(5610 - 5630 @ 240), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40MINUS, PASSIVE-SCAN
	(5630 - 5650 @ 240), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40PLUS, PASSIVE-SCAN
	(5650 - 5670 @ 80), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40MINUS, NO-160MHZ, PASSIVE-SCAN
	(5670 - 5690 @ 80), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40PLUS, NO-160MHZ, PASSIVE-SCAN
	(5690 - 5710 @ 80), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40MINUS, NO-160MHZ, PASSIVE-SCAN
	(5710 - 5730 @ 80), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40PLUS, NO-160MHZ, PASSIVE-SCAN
	(5735 - 5755 @ 80), (6, 22), (N/A), AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, NO-160MHZ, PASSIVE-SCAN
	(5755 - 5775 @ 80), (6, 22), (N/A), AUTO-BW, IR-CONCURRENT, NO-HT40PLUS, NO-160MHZ, PASSIVE-SCAN
	(5775 - 5795 @ 80), (6, 22), (N/A), AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, NO-160MHZ, PASSIVE-SCAN
	(5795 - 5815 @ 80), (6, 22), (N/A), AUTO-BW, IR-CONCURRENT, NO-HT40PLUS, NO-160MHZ, PASSIVE-SCAN
	(5815 - 5835 @ 20), (6, 22), (N/A), AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, NO-HT40PLUS, NO-80MHZ, NO-160MHZ, PASSIVE-SCAN

Where essentially I still have all 5GHz band disabled for AP mode (with the NO IR).

iw list | grep MHz                                                                                                                                                                                                                                                                                                                                                   [16:30:09]
			* 2412 MHz [1] (22.0 dBm)
			* 2417 MHz [2] (22.0 dBm)
			* 2422 MHz [3] (22.0 dBm)
			* 2427 MHz [4] (22.0 dBm)
			* 2432 MHz [5] (22.0 dBm)
			* 2437 MHz [6] (22.0 dBm)
			* 2442 MHz [7] (22.0 dBm)
			* 2447 MHz [8] (22.0 dBm)
			* 2452 MHz [9] (22.0 dBm)
			* 2457 MHz [10] (22.0 dBm)
			* 2462 MHz [11] (22.0 dBm)
			* 2467 MHz [12] (22.0 dBm)
			* 2472 MHz [13] (22.0 dBm)
			* 2484 MHz [14] (disabled)
			Supported Channel Width: 160 MHz
			short GI (80 MHz)
			short GI (160/80+80 MHz)
			* 5180 MHz [36] (22.0 dBm) (no IR)
			* 5200 MHz [40] (22.0 dBm) (no IR)
			* 5220 MHz [44] (22.0 dBm) (no IR)
			* 5240 MHz [48] (22.0 dBm) (no IR)
			* 5260 MHz [52] (22.0 dBm) (no IR, radar detection)
			* 5280 MHz [56] (22.0 dBm) (no IR, radar detection)
			* 5300 MHz [60] (22.0 dBm) (no IR, radar detection)
			* 5320 MHz [64] (22.0 dBm) (no IR, radar detection)
			* 5340 MHz [68] (disabled)
			* 5360 MHz [72] (disabled)
			* 5380 MHz [76] (disabled)
			* 5400 MHz [80] (disabled)
			* 5420 MHz [84] (disabled)
			* 5440 MHz [88] (disabled)
			* 5460 MHz [92] (disabled)
			* 5480 MHz [96] (disabled)
			* 5500 MHz [100] (22.0 dBm) (no IR, radar detection)
			* 5520 MHz [104] (22.0 dBm) (no IR, radar detection)
			* 5540 MHz [108] (22.0 dBm) (no IR, radar detection)
			* 5560 MHz [112] (22.0 dBm) (no IR, radar detection)
			* 5580 MHz [116] (22.0 dBm) (no IR, radar detection)
			* 5600 MHz [120] (22.0 dBm) (no IR, radar detection)
			* 5620 MHz [124] (22.0 dBm) (no IR, radar detection)
			* 5640 MHz [128] (22.0 dBm) (no IR, radar detection)
			* 5660 MHz [132] (22.0 dBm) (no IR, radar detection)
			* 5680 MHz [136] (22.0 dBm) (no IR, radar detection)
			* 5700 MHz [140] (22.0 dBm) (no IR, radar detection)
			* 5720 MHz [144] (22.0 dBm) (no IR, radar detection)
			* 5745 MHz [149] (22.0 dBm) (no IR)
			* 5765 MHz [153] (22.0 dBm) (no IR)
			* 5785 MHz [157] (22.0 dBm) (no IR)
			* 5805 MHz [161] (22.0 dBm) (no IR)
			* 5825 MHz [165] (22.0 dBm) (no IR)
			* 5845 MHz [169] (disabled)
			* 5865 MHz [173] (disabled)
			* 5885 MHz [177] (disabled)
			* 5905 MHz [181] (disabled)
		 * short GI for 40 MHz

Last edited by weilinear (2021-01-25 04:37:24)

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#2 2021-01-25 02:30:09

loqs
Member
Registered: 2014-03-06
Posts: 13,208

Re: Country setting for Intel Wifi

It can not longer be set from userspace,  see https://bugzilla.kernel.org/show_bug.cgi?id=208071 / https://bugzilla.kernel.org/show_bug.cgi?id=206469

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#3 2021-01-25 03:27:40

weilinear
Member
Registered: 2017-12-28
Posts: 12

Re: Country setting for Intel Wifi

@loqs Thanks! It looks like I'm SoL.. I was trying to set up the 5GHz hotspot .. and it seems downgrading the kernel with lar_disable will cause the driver unstable, and with recent kernel will have a "global" country code..

However, how comes the installation media could have it correctly?

Last edited by weilinear (2021-01-25 04:34:38)

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#4 2021-01-25 18:02:15

loqs
Member
Registered: 2014-03-06
Posts: 13,208

Re: Country setting for Intel Wifi

Possibly a difference in the kernel version or  firmware version.

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#5 2021-01-25 20:44:54

Tarqi
Member
From: Ixtlan
Registered: 2012-11-27
Posts: 138
Website

Re: Country setting for Intel Wifi

https://wiki.archlinux.org/index.php/So … link_layer. Look for country_code.

Knowing others is wisdom, knowing yourself is enlightenment. ~Lao Tse

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#6 2021-01-25 23:40:37

loqs
Member
Registered: 2014-03-06
Posts: 13,208

Re: Country setting for Intel Wifi

Tarqi wrote:

You have used that method to successfully override the region detected and enforced by iwlwifi LAR?

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#7 2021-01-25 23:44:24

Tarqi
Member
From: Ixtlan
Registered: 2012-11-27
Posts: 138
Website

Re: Country setting for Intel Wifi

I have used that method to successfully set the country-code to my country. That's all I know.

Edit: For an ath5 chip, not for Intel.
Edit2: And i can use 2,4 or 5 GHz and the channels within my country without further problems.
Edit3: Without setting the country, the chip is "without" a region (generic, default).

Last edited by Tarqi (2021-01-26 00:03:34)

Knowing others is wisdom, knowing yourself is enlightenment. ~Lao Tse

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#8 2021-01-26 06:07:27

weilinear
Member
Registered: 2017-12-28
Posts: 12

Re: Country setting for Intel Wifi

I have the country_code in hostapd and it has no effects.. I also tried to compile hostapd with the detection disabled in the code, but still it seems the driver won't allow this. I tried all firmware versions and nothing works. I guess it might be a combination of firmware+kernel version that will make it work. I will probably just buy a Qualcomm chip to swap out the intel one to use hostspot.

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#9 2021-01-26 16:09:16

Tarqi
Member
From: Ixtlan
Registered: 2012-11-27
Posts: 138
Website

Re: Country setting for Intel Wifi

Same here, I have an intel .m2 card which should replace the ath05 usb-stick, but overall it was a terrible experience, so I stayed by the usb one. Now I'm looking for a .m2 card as an built-in replacement for the usb-stick, ideally with dual-radio (qualcomm / atheros), but this seems to be impossible to buy in the consumer-market. If you find one, just let me know, please. Thanks.

Knowing others is wisdom, knowing yourself is enlightenment. ~Lao Tse

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