为什么 6 GHz 频段无法与我的 Wi-Fi 6 卡配合使用？

Question

我最近安装了Intel Wi-Fi 6 AX210控制器来测试 6 GHz 无线网络。规格明确表示该设备支持 2.4、5 和 6\xc2\xa0GHz 频段，但显示iw list所有 6\xc2\xa0GHz 频率均被禁用：

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...\nFrequencies:\n        * 5955 MHz [1] (disabled)\n        * 5975 MHz [5] (disabled)\n        * 5995 MHz [9] (disabled)\n        * 6015 MHz [13] (disabled)\n        * 6035 MHz [17] (disabled)\n        * 6055 MHz [21] (disabled)\n        * 6075 MHz [25] (disabled)\n        * 6095 MHz [29] (disabled)\n        * 6115 MHz [33] (disabled)\n        * 6135 MHz [37] (disabled)\n        * 6155 MHz [41] (disabled)\n        * 6175 MHz [45] (disabled)\n        * 6195 MHz [49] (disabled)\n        * 6215 MHz [53] (disabled)\n        * 6235 MHz [57] (disabled)\n        * 6255 MHz [61] (disabled)\n        * 6275 MHz [65] (disabled)\n        * 6295 MHz [69] (disabled)\n        * 6315 MHz [73] (disabled)\n        * 6335 MHz [77] (disabled)\n        * 6355 MHz [81] (disabled)\n        * 6375 MHz [85] (disabled)\n        * 6395 MHz [89] (disabled)\n        * 6415 MHz [93] (disabled)\n        * 6435 MHz [97] (disabled)\n        * 6455 MHz [101] (disabled)\n        * 6475 MHz [105] (disabled)\n        * 6495 MHz [109] (disabled)\n        * 6515 MHz [113] (disabled)\n        * 6535 MHz [117] (disabled)\n        * 6555 MHz [121] (disabled)\n        * 6575 MHz [125] (disabled)\n        * 6595 MHz [129] (disabled)\n        * 6615 MHz [133] (disabled)\n        * 6635 MHz [137] (disabled)\n        * 6655 MHz [141] (disabled)\n        * 6675 MHz [145] (disabled)\n        * 6695 MHz [149] (disabled)\n        * 6715 MHz [153] (disabled)\n        * 6735 MHz [157] (disabled)\n        * 6755 MHz [161] (disabled)\n        * 6775 MHz [165] (disabled)\n        * 6795 MHz [169] (disabled)\n        * 6815 MHz [173] (disabled)\n        * 6835 MHz [177] (disabled)\n        * 6855 MHz [181] (disabled)\n        * 6875 MHz [185] (disabled)\n        * 6895 MHz [189] (disabled)\n        * 6915 MHz [193] (disabled)\n        * 6935 MHz [197] (disabled)\n        * 6955 MHz [201] (disabled)\n        * 6975 MHz [205] (disabled)\n        * 6995 MHz [209] (disabled)\n        * 7015 MHz [213] (disabled)\n        * 7035 MHz [217] (disabled)\n        * 7055 MHz [221] (disabled)\n        * 7075 MHz [225] (disabled)\n        * 7095 MHz [229] (disabled)\n        * 7115 MHz [233] (disabled)\n...\n

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我想这与区域频段限制有关。现在我在欧盟，根据wi-fi.org ，欧盟采用了 5925-6425 MHz 的频率。

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输出iw reg get如下：

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global\ncountry US: DFS-FCC\n        (902 - 904 @ 2), (N/A, 30), (N/A)\n        (904 - 920 @ 16), (N/A, 30), (N/A)\n        (920 - 928 @ 8), (N/A, 30), (N/A)\n        (2400 - 2472 @ 40), (N/A, 30), (N/A)\n        (5150 - 5250 @ 80), (N/A, 23), (N/A), AUTO-BW\n        (5250 - 5350 @ 80), (N/A, 24), (0 ms), DFS, AUTO-BW\n        (5470 - 5730 @ 160), (N/A, 24), (0 ms), DFS\n        (5730 - 5850 @ 80), (N/A, 30), (N/A), AUTO-BW\n        (5850 - 5895 @ 40), (N/A, 27), (N/A), NO-OUTDOOR, AUTO-BW, PASSIVE-SCAN\n        (5925 - 7125 @ 320), (N/A, 12), (N/A), NO-OUTDOOR, PASSIVE-SCAN\n        (57240 - 71000 @ 2160), (N/A, 40), (N/A)\n\nphy#0 (self-managed)\ncountry 00: DFS-UNSET\n        (2402 - 2437 @ 40), (6, 22), (N/A), AUTO-BW, NO-HT40MINUS, NO-80MHZ, NO-160MHZ\n        (2422 - 2462 @ 40), (6, 22), (N/A), AUTO-BW, NO-80MHZ, NO-160MHZ\n        (2447 - 2482 @ 40), (6, 22), (N/A), AUTO-BW, NO-HT40PLUS, NO-80MHZ, NO-160MHZ\n        (5170 - 5190 @ 160), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, PASSIVE-SCAN\n        (5190 - 5210 @ 160), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40PLUS, PASSIVE-SCAN\n        (5210 - 5230 @ 160), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, PASSIVE-SCAN\n        (5230 - 5250 @ 160), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40PLUS, PASSIVE-SCAN\n        (5250 - 5270 @ 160), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40MINUS, PASSIVE-SCAN\n        (5270 - 5290 @ 160), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40PLUS, PASSIVE-SCAN\n        (5290 - 5310 @ 160), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40MINUS, PASSIVE-SCAN\n        (5310 - 5330 @ 160), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40PLUS, PASSIVE-SCAN\n        (5490 - 5510 @ 240), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40MINUS, PASSIVE-SCAN\n        (5510 - 5530 @ 240), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40PLUS, PASSIVE-SCAN\n        (5530 - 5550 @ 240), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40MINUS, PASSIVE-SCAN\n        (5550 - 5570 @ 240), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40PLUS, PASSIVE-SCAN\n        (5570 - 5590 @ 240), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40MINUS, PASSIVE-SCAN\n        (5590 - 5610 @ 240), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40PLUS, PASSIVE-SCAN\n        (5610 - 5630 @ 240), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40MINUS, PASSIVE-SCAN\n        (5630 - 5650 @ 240), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40PLUS, PASSIVE-SCAN\n        (5650 - 5670 @ 80), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40MINUS, NO-160MHZ, PASSIVE-SCAN\n        (5670 - 5690 @ 80), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40PLUS, NO-160MHZ, PASSIVE-SCAN\n        (5690 - 5710 @ 80), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40MINUS, NO-160MHZ, PASSIVE-SCAN\n        (5710 - 5730 @ 80), (6, 22), (0 ms), DFS, AUTO-BW, NO-HT40PLUS, NO-160MHZ, PASSIVE-SCAN\n        (5735 - 5755 @ 80), (6, 22), (N/A), AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, NO-160MHZ, PASSIVE-SCAN\n        (5755 - 5775 @ 80), (6, 22), (N/A), AUTO-BW, IR-CONCURRENT, NO-HT40PLUS, NO-160MHZ, PASSIVE-SCAN\n        (5775 - 5795 @ 80), (6, 22), (N/A), AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, NO-160MHZ, PASSIVE-SCAN\n        (5795 - 5815 @ 80), (6, 22), (N/A), AUTO-BW, IR-CONCURRENT, NO-HT40PLUS, NO-160MHZ, PASSIVE-SCAN\n        (5815 - 5835 @ 40), (6, 22), (N/A), AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, NO-80MHZ, NO-160MHZ, PASSIVE-SCAN\n

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Grepping for iwlwifithroughdmesg没有给我任何相关信息：

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iwlwifi 0000:06:00.0: api flags index 2 larger than supported by driver\niwlwifi 0000:06:00.0: Unhandled alg: 0x71b\niwlwifi 0000:06:00.0: Unhandled alg: 0x3f0707\niwlwifi 0000:06:00.0: Unhandled alg: 0x3f0707\niwlwifi 0000:06:00.0: Unhandled alg: 0x71b\niwlwifi 0000:06:00.0: Unhandled alg: 0x71b\n

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我有两个问题：

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1. 为什么 6 GHz 频段无法使用？
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2. 如何使适配器使用限制较少的设置？
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我的设置：

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• 内核：5.15.0-56-generic
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• 操作系统：Ubuntu 22.04.1 LTS（Jammy Jellyfish）
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• 控制器：英特尔公司 Wi-Fi 6 AX210/AX211/AX411 160MHz [8086:2725]（修订版 1a）
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Answer 1

为什么 6 GHz 频段无法工作？

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它仅适用于 Windows 11。

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所有 Intel\xc2\xae Wi-Fi 6E (Gig+) 产品均支持新的 6GHz Wi-Fi 频段。6GHz 频段的使用依赖于 Microsoft Windows (Windows\xc2\xae 11) 操作系统支持。

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^{（强调我的）}

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资料来源：如何使用 Intel\xc2\xae Wi-Fi 6E (Gig+) 启用 Wi-Fi 6E/ 6GHz 频段...

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您链接到的规格页面确实说：

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支持的操作系统 Windows 11、64 位*、Windows 10、64 位*、Linux*

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不过，英特尔目前不提供 Linux 驱动程序。

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如何使适配器使用限制较少的设置？

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你不能。

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启用 Wi-Fi 6E /6GHz 频段的要求：

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• 确保您的系统运行的是 Microsoft Windows (Windows\xc2\xae 11) 操作系统。包括 Microsoft 提供的最新更新。
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• 使用适用于 Intel\xc2\xae 无线适配器版本 22.70.0 或更高版本的最新 Wi-Fi 驱动程序。
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• 请注意，6E 功能需要 6GHz 兼容路由器。请注意，您所在国家/地区的监管机构可能会禁止使用 6GHz 频段，或者系统制造商可能不会在您的平台上启用 6GHz 频段。
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资料来源：如何使用 Intel\xc2\xae Wi-Fi 6E (Gig+) 启用 Wi-Fi 6E/ 6GHz 频段...

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