如何解決“本地選擇取消身份驗證”？

我使用Buildroot建構了一個嵌入式 Linux ，但在與 AP 保持連接時遇到了一些麻煩。無法多次獲取 IP 地址。

我使用 wpa_supplicant 通過 WPA2-PSK 連接到我的 AP。它適用於其他 AP，例如我的智能手機處於 AP 模式。

當我使用時iwconfig wlan0，我看到我與我的 AP 相關聯

wlan0     IEEE 802.11bgn  ESSID:"ZyXEL_B3B5"  
         Mode:Managed  Frequency:2.462 GHz  Access Point: 90:EF:68:D3:B3:B5   
         Bit Rate=58.5 Mb/s   Tx-Power=20 dBm   
         Retry  long limit:7   RTS thr:off   Fragment thr:off
         Encryption key:off
         Power Management:on
         Link Quality=53/70  Signal level=-57 dBm  
         Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
         Tx excessive retries:0  Invalid misc:1   Missed beacon:0

但我無法獲得 IP 地址ifup wlan0

udhcpc (v1.22.1) started
Sending discover...
Sending discover...
Sending discover...
No lease, failing

我應該說我只能獲得一次 IP 地址。如果我重新啟動，這將不再可能。

我設法安裝dhclient而不是使用 Busybox 的預設 DHCP 客戶端，但沒有任何反應（我無限期地被阻止）

dhclient wlan0

根據我的核心消息，我似乎沒有持續關聯

[  355.459738] wlan0: authenticate with 90:ef:68:d3:b3:b5 (try 1)
[  355.461366] wlan0: authenticated
[  355.461416] wlan0: associate with 90:ef:68:d3:b3:b5 (try 1)
[  355.469353] wlan0: RX AssocResp from 90:ef:68:d3:b3:b5 (capab=0x431 status=0 aid=1)
[  355.469364] wlan0: associated
[  365.547863] wlan0: deauthenticating from 90:ef:68:d3:b3:b5 by local choice (reason=3)
[  365.672765] cfg80211: Calling CRDA to update world regulatory domain
[  367.169736] wlan0: authenticate with 90:ef:68:d3:b3:b5 (try 1)
[  367.171421] wlan0: authenticated
[  367.194859] wlan0: associate with 90:ef:68:d3:b3:b5 (try 1)
[  367.198561] wlan0: RX AssocResp from 90:ef:68:d3:b3:b5 (capab=0x431 status=0 aid=1)
[  367.198584] wlan0: associated
[  377.277864] wlan0: deauthenticating from 90:ef:68:d3:b3:b5 by local choice (reason=3)
[  377.412822] cfg80211: Calling CRDA to update world regulatory domain
[  378.899738] wlan0: authenticate with 90:ef:68:d3:b3:b5 (try 1)
[  378.901668] wlan0: authenticated
[  378.924732] wlan0: associate with 90:ef:68:d3:b3:b5 (try 1)
[  378.928437] wlan0: RX AssocResp from 90:ef:68:d3:b3:b5 (capab=0x431 status=0 aid=1)
[  378.928461] wlan0: associated
[  389.008120] wlan0: deauthenticating from 90:ef:68:d3:b3:b5 by local choice (reason=3)
[  389.182888] cfg80211: Calling CRDA to update world regulatory domain
[  390.689735] wlan0: authenticate with 90:ef:68:d3:b3:b5 (try 1)
[  390.691415] wlan0: authenticated
[  390.714734] wlan0: associate with 90:ef:68:d3:b3:b5 (try 1)
[  390.720847] wlan0: RX AssocResp from 90:ef:68:d3:b3:b5 (capab=0x431 status=0 aid=1)
[  390.720870] wlan0: associated
[  400.811246] wlan0: deauthenticating from 90:ef:68:d3:b3:b5 by local choice (reason=3)
...

我的 AP 的日誌

338     Nov 16 15:50:53 udhcpd[2404]: Received DISCOVER
339     Nov 16 15:50:53 udhcpd[2404]: unicasting packet to client yiaddr
340     Nov 16 15:50:56 udhcpd[2404]: Received DISCOVER
341     Nov 16 15:50:56 udhcpd[2404]: unicasting packet to client yiaddr
342     Nov 16 15:50:59 udhcpd[2404]: Received DISCOVER
343     Nov 16 15:50:59 udhcpd[2404]: unicasting packet to client yiaddr

工作時的日誌（僅一次）

325     Nov 16 15:48:37 udhcpd[2404]: Received DISCOVER
326     Nov 16 15:48:37 udhcpd[2404]: unicasting packet to client yiaddr
327     Nov 16 15:48:37 udhcpd[2404]: Received REQUEST
328     Nov 16 15:48:37 udhcpd[2404]: lease = 11854360
329     Nov 16 15:48:37 udhcpd[2404]: requested = b2a8eb7f
330     Nov 16 15:48:37 udhcpd[2404]: server_id = c0a80101
331     Nov 16 15:48:37 udhcpd[2404]: unicasting packet to client yiaddr

如何解決？

我在我的 AP 中將“自動頻道”選項更改為固定頻道，將“頻道寬度”選項更改為 20 MHz，它解決了我的問題。

引用自：https://unix.stackexchange.com/questions/243280