我在 Ubuntu 上使用 WiFi 时遇到了问题。4-6 分钟后，我无法访问互联网，尽管它显示我仍处于连接状态。我在家里的任何其他设备上或使用 Windows 时使用 WiFi 都没有问题。我一直试图使用 Ubuntu 作为我的主要操作系统，但这个 WiFi 问题使它无法使用并且非常麻烦。
lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 1532:0060 Razer USA, Ltd
Bus 001 Device 003: ID 1532:021e Razer USA, Ltd
Bus 001 Device 002: ID 1532:0502 Razer USA, Ltd
Bus 001 Device 005: ID 0b05:17ba ASUSTek Computer, Inc. N10 Nano 802.11n Network Adapter [Realtek RTL8192CU]
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
ifconfig
enp2s0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
ether 30:9c:23:07:ad:2e txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1000 (Local Loopback)
RX packets 498 bytes 43657 (43.6 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 498 bytes 43657 (43.6 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
wlx88d7f6061b8e: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.1.151 netmask 255.255.255.0 broadcast 192.168.1.255
inet6 fe80::c6b0:9a6c:5e9f:d9a prefixlen 64 scopeid 0x20<link>
ether 88:d7:f6:06:1b:8e txqueuelen 1000 (Ethernet)
RX packets 3252 bytes 3121913 (3.1 MB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 2566 bytes 362022 (362.0 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lsmod | grep rtl
rtl8xxxu 126976 0
rtl8192cu 69632 0
rtl_usb 20480 1 rtl8192cu
rtl8192c_common 57344 1 rtl8192cu
rtlwifi 77824 3 rtl_usb,rtl8192c_common,rtl8192cu
mac80211 782336 4 rtl_usb,rtlwifi,rtl8192cu,rtl8xxxu
cfg80211 614400 2 mac80211,rtlwifi
编辑：
dmesg | grep -e wlx -e rtl
[ 10.281634] usb 1-10: rtl8192cu_parse_efuse: dumping efuse (0x80 bytes):
[ 10.281652] usb 1-10: rtl8xxxu: Loading firmware rtlwifi/rtl8192cufw_TMSC.bin
[ 11.204169] usbcore: registered new interface driver rtl8xxxu
[ 12.142173] rtl8xxxu 1-10:1.0 wlx88d7f6061b8e: renamed from wlan0
[ 21.734810] IPv6: ADDRCONF(NETDEV_UP): wlx88d7f6061b8e: link is not ready
[ 21.738882] IPv6: ADDRCONF(NETDEV_UP): wlx88d7f6061b8e: link is not ready
[ 22.336831] IPv6: ADDRCONF(NETDEV_UP): wlx88d7f6061b8e: link is not ready
[ 24.600867] wlx88d7f6061b8e: authenticate with 00:12:2a:87:e8:18
[ 24.605979] wlx88d7f6061b8e: send auth to 00:12:2a:87:e8:18 (try 1/3)
[ 24.607334] wlx88d7f6061b8e: authenticated
[ 24.608168] wlx88d7f6061b8e: associate with 00:12:2a:87:e8:18 (try 1/3)
[ 24.615359] wlx88d7f6061b8e: RX AssocResp from 00:12:2a:87:e8:18 (capab=0x431 status=0 aid=15)
[ 24.615926] usb 1-10: rtl8xxxu_bss_info_changed: HT supported
[ 24.616528] wlx88d7f6061b8e: associated
[ 24.616535] IPv6: ADDRCONF(NETDEV_CHANGE): wlx88d7f6061b8e: link becomes ready
[ 139.804740] wlx88d7f6061b8e: deauthenticating from 00:12:2a:87:e8:18 by local choice (Reason: 3=DEAUTH_LEAVING)
[ 142.096664] wlx88d7f6061b8e: authenticate with 00:12:2a:87:e8:18
[ 142.099742] wlx88d7f6061b8e: send auth to 00:12:2a:87:e8:18 (try 1/3)
[ 142.104101] wlx88d7f6061b8e: authenticated
[ 142.108046] wlx88d7f6061b8e: associate with 00:12:2a:87:e8:18 (try 1/3)
[ 142.116296] wlx88d7f6061b8e: RX AssocResp from 00:12:2a:87:e8:18 (capab=0x431 status=0 aid=15)
[ 142.116928] usb 1-10: rtl8xxxu_bss_info_changed: HT supported
[ 142.117649] wlx88d7f6061b8e: associated
[ 190.224452] wlx88d7f6061b8e: disassociated from 00:12:2a:87:e8:18 (Reason: 2=PREV_AUTH_NOT_VALID)
[ 191.337207] wlx88d7f6061b8e: authenticate with 00:12:2a:87:e8:18
[ 191.343266] wlx88d7f6061b8e: send auth to 00:12:2a:87:e8:18 (try 1/3)
[ 191.346611] wlx88d7f6061b8e: authenticated
[ 191.348112] wlx88d7f6061b8e: associate with 00:12:2a:87:e8:18 (try 1/3)
[ 191.351230] wlx88d7f6061b8e: RX AssocResp from 00:12:2a:87:e8:18 (capab=0x431 status=0 aid=15)
[ 191.351815] usb 1-10: rtl8xxxu_bss_info_changed: HT supported
[ 191.352555] wlx88d7f6061b8e: associated
[ 417.076676] wlx88d7f6061b8e: deauthenticating from 00:12:2a:87:e8:18 by local choice (Reason: 3=DEAUTH_LEAVING)
[ 422.665477] wlx88d7f6061b8e: authenticate with 00:12:2a:87:e8:18
[ 422.668437] wlx88d7f6061b8e: send auth to 00:12:2a:87:e8:18 (try 1/3)
[ 422.669771] wlx88d7f6061b8e: authenticated
[ 422.672046] wlx88d7f6061b8e: associate with 00:12:2a:87:e8:18 (try 1/3)
[ 422.676420] wlx88d7f6061b8e: RX AssocResp from 00:12:2a:87:e8:18 (capab=0x431 status=0 aid=15)
[ 422.676975] usb 1-10: rtl8xxxu_bss_info_changed: HT supported
[ 422.677789] wlx88d7f6061b8e: associated
nmcli dev wifi list
* SSID MODE CHAN RATE SIGNAL BARS SECURITY
DIRECT-88-HP DeskJet 4530 series Infra 13 54 Mbit/s 100 ▂▄▆█ WPA2
* NETIASPOT-87E810 Infra 13 54 Mbit/s 58 ▂▄▆_ WPA1 WPA2
LLOYD Infra 6 54 Mbit/s 54 ▂▄__ WPA2
VICTORIA Infra 11 54 Mbit/s 40 ▂▄__ WPA2
答案1
如我们所见，华硕无线设备加载了两个可能存在冲突的驱动程序；让我们尝试将其中一个列入黑名单，看看稳定性是否会提高：
sudo -i
echo "blacklist rtl8192cu" >> /etc/modprobe.d/blacklist.conf
exit
我还建议更改网络管理器以禁用省电功能：
sudo sed -i 's/3/2/' /etc/NetworkManager/conf.d/*
然后重新启动网络管理器：
sudo service network-manager restart
有沒有改善？
编辑：出于隐私原因，Ubuntu 17.04（及更高版本）网络管理器的默认设置会导致 USB Wifi 设备的 MAC 地址不断变化。要解决此问题，您只需编辑配置文件，然后重新启动网络管理器服务。
打开终端并运行：
sudo nano /etc/NetworkManager/NetworkManager.conf
在此文件的底部，复制并粘贴以下内容：
[device]
wifi.scan-rand-mac-address=no
仔细校对，保存并关闭文本编辑器并运行：
sudo service network-manager restart
有沒有改善？