使用 WiFi 一段时间后，我收到以下信息：WiFi 仍处于连接状态，但无法访问互联网。我该如何修复？还需要其他信息吗？
消息
[ 3104.614783] wlan0: deauthenticating from MAC by local choice (Reason: 3=DEAUTH_LEAVING)
[ 3104.615294] rtl8192c_common:rtl92c_fill_h2c_cmd(): return H2C cmd because of Fw download fail!!!
[ 3104.627479] cfg80211: Calling CRDA to update world regulatory domain
[ 3104.641365] cfg80211: World regulatory domain updated:
[ 3104.641369] cfg80211: DFS Master region: unset
[ 3104.641371] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[ 3104.641374] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[ 3104.641376] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[ 3104.641378] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (N/A, 2000 mBm), (N/A)
[ 3104.641380] cfg80211: (5170000 KHz - 5250000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (N/A)
[ 3104.641383] cfg80211: (5250000 KHz - 5330000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (0 s)
[ 3104.641385] cfg80211: (5490000 KHz - 5730000 KHz @ 160000 KHz), (N/A, 2000 mBm), (0 s)
[ 3104.641387] cfg80211: (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 2000 mBm), (N/A)
[ 3104.641389] cfg80211: (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 0 mBm), (N/A)
[ 3105.354898] wlan0: authenticate with MAC
[ 3105.354906] wlan0: capabilities/regulatory prevented using AP HT/VHT configuration, downgraded
[ 3105.378405] wlan0: send auth to MAC (try 1/3)
[ 3105.406062] wlan0: authenticated
[ 3105.410305] wlan0: associate with MAC (try 1/3)
[ 3105.431422] wlan0: RX AssocResp from MAC (capab=0x411 status=0 aid=1)
[ 3105.431444] rtl8192c_common:rtl92c_fill_h2c_cmd(): return H2C cmd because of Fw download fail!!!
[ 3105.431460] rtl8192cu:rtl92cu_set_hw_reg():<0-0> switch case not processed
[ 3105.431463] rtl8192c_common:rtl92c_fill_h2c_cmd(): return H2C cmd because of Fw download fail!!!
[ 3105.432390] rtl8192c_common:rtl92c_fill_h2c_cmd(): return H2C cmd because of Fw download fail!!!
[ 3105.432396] rtl8192c_common:rtl92c_fill_h2c_cmd(): return H2C cmd because of Fw download fail!!!
[ 3105.432419] wlan0: associated
[ 3105.432428] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
答案1
讯息
return H2C cmd because of Fw download fail!!!
是无害的，正如驱动程序的作者所说这里：
这些 Fw 下载消息可以且应该被忽略。通过使用“debug=3”选项加载模块，您将获得更多信息；但是，这将生成大量信息并可能填满您的存储空间。
你真正的问题是
capabilities/regulatory prevented using AP HT/VHT configuration, downgraded
/etc/modprobe.d/cfg80211.conf可以通过创建包含以下文本的文件来解决此问题，
options cfg80211 ieee80211_regdom=US
（管他呢你的监管域），然后重新启动。
但最重要的是，确保您拥有最新的内核和最新的驱动程序。如果出于任何原因您无法将内核更新到较新的版本，请从 Linux 内核反向移植存储库安装相关驱动程序，这里。正如他们所说，
我们提供在较新内核上发布的驱动程序，这些驱动程序可移植到较旧的内核上使用