我正在使用 Intel AC 7265D wifi 卡設定新的 T450s。 Windows 7 無線網路運作完美。所以，應該不是硬體問題。但在應用了本論壇中找到的各種解決方法後，雙啟動到 14.04 wifi 不起作用。然後我升級到 15.10，核心升級到 4.2.6，按照 chili555 的逐步說明應用最新韌體 15.227938.0（它使用 iwlwifi-7265D-15.ucode，我能找到的最新版本）。還是沒有無線網路。行為是無止盡的 wifi 身份驗證請求。從下面的 dmesg 輸出來看，身份驗證似乎已完成，但與路由器的關聯始終失敗。我想知道為什麼他們不喜歡對方。以及是什麼阻止了他們的聯繫......任何想法將不勝感激！
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dmesg |grep wlan0
[ 5.902703] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 5.984403] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 6.292143] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 33.086486] wlan0: authenticate with <router mac addr>
[ 33.092328] wlan0: send auth to <router mac addr> (try 1/3)
[ 33.180050] wlan0: authenticated
[ 33.180218] iwlwifi 0000:03:00.0 wlan0: disabling HT as WMM/QoS is not supported by the AP
[ 33.180222] iwlwifi 0000:03:00.0 wlan0: disabling VHT as WMM/QoS is not supported by the AP
[ 33.184143] wlan0: associate with <router mac addr> (try 1/3)
[ 33.288048] wlan0: associate with <router mac addr> (try 2/3)
[ 33.392015] wlan0: associate with <router mac addr> (try 3/3)
[ 33.495959] wlan0: association with <router mac addr> timed out
.....
lshw -c network===============
-network
description: Wireless interface
product: Wireless 7265
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:03:00.0
logical name: wlan0
version: 59
serial: <mac addr>
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=iwlwifi driverversion=4.2.6-040206-generic firmware=15.227938.0 latency=0 link=no multicast=yes wireless=IEEE 802.11abgn
resources: irq:50 memory:e1000000-e1001fff
lspci -nnk===========
03:00.0 Network controller [0280]: Intel Corporation Wireless 7265 [8086:095b] (rev 59)
Subsystem: Intel Corporation Dual Band Wireless-AC 7265 [8086:5210]
Kernel driver in use: iwlwifi
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答案1
我們在 /etc/modprobe.d/iwlwifi.conf 的無線腳本中看到這一點：
選項 iwlwifi bt_coex_active=N swcrypto=1 11n_disable=1 p2p_disabled=1
如你看到的，p2p_禁用不是有效參數：
parm: swcrypto:using crypto in software (default 0 [hardware]) (int)
parm: 11n_disable:disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX (uint)
parm: amsdu_size_8K:enable 8K amsdu size (default 0) (int)
parm: fw_restart:restart firmware in case of error (default true) (bool)
parm: antenna_coupling:specify antenna coupling in dB (default: 0 dB) (int)
parm: nvm_file:NVM file name (charp)
parm: d0i3_disable:disable d0i3 functionality (default: Y) (bool)
parm: lar_disable:disable LAR functionality (default: N) (bool)
parm: uapsd_disable:disable U-APSD functionality (default: Y) (bool)
parm: bt_coex_active:enable wifi/bt co-exist (default: enable) (bool)
parm: led_mode:0=system default, 1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0) (int)
parm: power_save:enable WiFi power management (default: disable) (bool)
parm: power_level:default power save level (range from 1 - 5, default: 1) (int)
parm: fw_monitor:firmware monitor - to debug FW (default: false - needs lots of memory) (bool)
我建議你這樣做：
sudo gedit /etc/modprobe.d/iwlwifi.conf
如果您沒有文字編輯器 gedit，請使用 nano 或 kate 或 leafpad。將最後一行更改為：
options iwlwifi bt_coex_active=N swcrypto=1 11n_disable=1
仔細校對，儲存並關閉文字編輯器。
接下來，我建議您明確設定監管領域。檢查你的：
sudo iw reg get
如果您得到 00，則這是一種一刀切的設定。在這裡找到你的：http://en.wikipedia.org/wiki/ISO_3166-1_alpha-2然後暫時設定一下：
sudo iw reg set IS
當然，如果不是冰島，請替換您的國家/地區代碼。永久設定：
gksudo gedit /etc/default/crda
將最後一行更改為：
REGDOMAIN=IS
仔細校對，儲存並關閉文字編輯器。
重新啟動並告訴我們連線是否已改善。
您可以嘗試安裝更新的韌體：
sudo apt-get update
sudo apt-get install git
git clone https://github.com/OpenELEC/iwlwifi-firmware.git
cd iwlwifi-firmware
sudo ./install
重啟。有什麼改進嗎？