我刚刚将 Ubuntu 添加为笔记本电脑的双启动操作系统。无论如何，我的 wifi 出现了问题。它显示我已连接，但我无法打开任何网站。我进行了一些谷歌搜索并尝试了一些方法，但它们并没有解决我的问题。无论如何，我将发布我在其他帖子中看到的此类问题的一些常用命令的结果。
keggatron@keegan-Satellite:~$ cat /etc/lsb-release; uname -a
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=16.04
DISTRIB_CODENAME=xenial
DISTRIB_DESCRIPTION="Ubuntu 16.04 LTS"
Linux keegan-Satellite 4.4.0-21-generic #37-Ubuntu SMP Mon Apr 18 18:33:37 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
keggatron@keegan-Satellite:~$ lspci -nnk | grep -iA2 net
01:00.0 Ethernet controller [0200]: Qualcomm Atheros AR8162 Fast Ethernet [1969:1090] (rev 10)
Subsystem: Toshiba America Info Systems AR8162 Fast Ethernet [1179:ff1e]
Kernel driver in use: alx
Kernel modules: alx
02:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8188EE Wireless Network Adapter [10ec:8179] (rev 01)
Subsystem: Realtek Semiconductor Co., Ltd. RTL8188EE Wireless Network Adapter [10ec:0191]
Kernel driver in use: rtl8188ee
Kernel modules: rtl8188ee
keggatron@keegan-Satellite:~$ iwconfig
wlp2s0 IEEE 802.11bgn ESSID:"Terra"
Mode:Managed Frequency:2.462 GHz Access Point: 14:CC:20:56:CC:A5
Bit Rate=150 Mb/s Tx-Power=20 dBm
Retry short limit:7 RTS thr=2347 B Fragment thr:off
Power Management:off
Link Quality=70/70 Signal level=-30 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:19 Missed beacon:0
lo no wireless extensions.
enp1s0 no wireless extensions.
keggatron@keegan-Satellite:~$ rfkill list all
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
keggatron@keegan-Satellite:~$ lsmod
Module Size Used by
drbg 32768 1
ansi_cprng 16384 0
ctr 16384 2
ccm 20480 2
nls_iso8859_1 16384 1
rtsx_usb_ms 20480 0
memstick 20480 1 rtsx_usb_ms
intel_rapl 20480 0
x86_pkg_temp_thermal 16384 0
intel_powerclamp 16384 0
coretemp 16384 0
kvm_intel 172032 0
uvcvideo 90112 0
kvm 536576 1 kvm_intel
arc4 16384 2
rtl8188ee 86016 0
videobuf2_vmalloc 16384 1 uvcvideo
rtl_pci 28672 1 rtl8188ee
irqbypass 16384 1 kvm
rtlwifi 77824 2 rtl_pci,rtl8188ee
mac80211 737280 3 rtl_pci,rtlwifi,rtl8188ee
videobuf2_memops 16384 1 videobuf2_vmalloc
videobuf2_v4l2 28672 1 uvcvideo
videobuf2_core 36864 2 uvcvideo,videobuf2_v4l2
v4l2_common 16384 1 videobuf2_v4l2
snd_hda_codec_hdmi 53248 1
videodev 176128 4 uvcvideo,v4l2_common,videobuf2_core,videobuf2_v4l2
media 24576 2 uvcvideo,videodev
snd_hda_codec_realtek 81920 1
snd_hda_codec_generic 77824 1 snd_hda_codec_realtek
crct10dif_pclmul 16384 0
crc32_pclmul 16384 0
snd_hda_intel 36864 3
snd_hda_codec 135168 4 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_intel
snd_hda_core 73728 5 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel
cfg80211 565248 2 mac80211,rtlwifi
snd_hwdep 16384 1 snd_hda_codec
snd_pcm 106496 4 snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel,snd_hda_core
snd_seq_midi 16384 0
snd_seq_midi_event 16384 1 snd_seq_midi
snd_rawmidi 32768 1 snd_seq_midi
snd_seq 69632 2 snd_seq_midi_event,snd_seq_midi
snd_seq_device 16384 3 snd_seq,snd_rawmidi,snd_seq_midi
snd_timer 32768 2 snd_pcm,snd_seq
cryptd 20480 0
snd 81920 17 snd_hda_codec_realtek,snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_pcm,snd_seq,snd_rawmidi,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel,snd_seq_device
soundcore 16384 1 snd
joydev 20480 0
input_leds 16384 0
serio_raw 16384 0
toshiba_acpi 40960 0
mei_me 36864 0
sparse_keymap 16384 1 toshiba_acpi
shpchp 36864 0
toshiba_bluetooth 16384 0
lpc_ich 24576 0
mei 98304 1 mei_me
mac_hid 16384 0
parport_pc 32768 0
ppdev 20480 0
lp 20480 0
parport 49152 3 lp,ppdev,parport_pc
autofs4 40960 2
rtsx_usb_sdmmc 28672 0
rtsx_usb 24576 2 rtsx_usb_sdmmc,rtsx_usb_ms
i915 1208320 3
alx 36864 0
psmouse 126976 0
i2c_algo_bit 16384 1 i915
drm_kms_helper 139264 1 i915
ahci 36864 3
syscopyarea 16384 1 drm_kms_helper
sysfillrect 16384 1 drm_kms_helper
libahci 32768 1 ahci
sysimgblt 16384 1 drm_kms_helper
fb_sys_fops 16384 1 drm_kms_helper
mdio 16384 1 alx
drm 360448 5 i915,drm_kms_helper
wmi 20480 1 toshiba_acpi
video 40960 2 i915,toshiba_acpi
fjes 28672 0
如果你们中有人能帮助我解决这个问题，我会非常感激，因为这个问题真的很令人沮丧。
提前致谢。
以下是 Brane 要求的额外信息：
keggatron@keegan-Satellite:~$ ip link
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: enp1s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP mode DEFAULT group default qlen 1000
link/ether 00:8c:fa:93:30:6b brd ff:ff:ff:ff:ff:ff
3: wlp2s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DORMANT group default qlen 1000
link/ether 64:5a:04:0a:80:57 brd ff:ff:ff:ff:ff:ff
keggatron@keegan-Satellite:~$ ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: enp1s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
link/ether 00:8c:fa:93:30:6b brd ff:ff:ff:ff:ff:ff
inet 192.168.0.105/24 brd 192.168.0.255 scope global dynamic enp1s0
valid_lft 7112sec preferred_lft 7112sec
inet6 fe80::51bb:9d8e:3cfb:e968/64 scope link
valid_lft forever preferred_lft forever
3: wlp2s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
link/ether 64:5a:04:0a:80:57 brd ff:ff:ff:ff:ff:ff
inet 192.168.0.103/24 brd 192.168.0.255 scope global dynamic wlp2s0
valid_lft 7062sec preferred_lft 7062sec
inet6 fe80::2b61:811:467f:4abc/64 scope link
valid_lft forever preferred_lft forever
keggatron@keegan-Satellite:~$ ip route
default via 192.168.0.1 dev enp1s0 proto static metric 100
default via 192.168.0.1 dev wlp2s0 proto static metric 600
169.254.0.0/16 dev wlp2s0 scope link metric 1000
192.168.0.0/24 dev enp1s0 proto kernel scope link src 192.168.0.105 metric 100
192.168.0.0/24 dev wlp2s0 proto kernel scope link src 192.168.0.103 metric 600
keggatron@keegan-Satellite:~$ cat /etc/resolv.conf
# Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
# DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
nameserver 127.0.1.1
编辑：其余命令的结果：
keggatron@keegan-Satellite:~$ nslookup google.com
Server: 127.0.1.1
Address: 127.0.1.1#53
Non-authoritative answer:
Name: GOOglE.CoM
Address: 216.58.209.206
keggatron@keegan-Satellite:~$ iptables -nvL
modprobe: ERROR: could not insert 'ip_tables': Operation not permitted
iptables v1.6.0: can't initialize iptables table `filter': Table does not exist (do you need to insmod?)
Perhaps iptables or your kernel needs to be upgraded.
keggatron@keegan-Satellite:~$ iptables -t nat -nvL
modprobe: ERROR: could not insert 'ip_tables': Operation not permitted
iptables v1.6.0: can't initialize iptables table `nat': Table does not exist (do you need to insmod?)
Perhaps iptables or your kernel needs to be upgraded.
答案1
从原始问题下的评论中的诊断结果来看，一切正常，您的 wifi 连接确实正常工作……虽然非常糟糕，但可以正常工作。经过一番谷歌搜索，我发现很多人在 Ubuntu 中使用 RTL8188 无线芯片组的所有变体时似乎都遇到了问题，您使用的是 RTL8188EE。
您可以尝试运行以下命令来删除当前的 RTL8188EE 驱动程序，下载并安装新驱动程序（来自 Larry Fingers 的 GIT 存储库，您的驱动程序上次更新时间为 6 天前），这似乎可以解决大多数人的问题。在通过有线连接连接到互联网时执行此操作：
cd ~
sudo apt-get install build-essential linux-headers-generic git dkms
git clone http://github.com/lwfinger/rtlwifi_new.git
cd rtlwifi_new
make
sudo modprobe -rv rtl8188ee
sudo make install
sudo modprobe -v rtl8188ee
完成后，请重新启动计算机以防万一。如果在运行这些命令时收到任何警告或错误，并且问题最终未得到解决，请在此处发布错误。
清理：
运行 时apt-get，您可以记录系统中已安装的软件包以及现在将要安装的软件包。一切开始正常工作后，您可以运行以删除新安装的软件包（如果您愿意）。完成所有操作后，您还可以通过运行sudo apt-get remove package_name other_package_name and_so_on删除rtlwifi_new运行时创建的目录。git clonerm -rf ~/rtlwifi_new