After installing ubuntu 16.04 I can use wifi properly with my home router but get problem at university network. It shows that wifi is connected but actually no internet.
1.I have followed the following link but no internet. Wireless connected but no internet access
Result of the following commands are given below
ping 8.8.8.8
cat /etc/lsb-release; uname -a
lspci -nnk | grep -iA2 net
iwconfig
rfkill list all
lsmod
2.ping 8.8.8.8
result:ping 8.8.8.8 connect network is unreachable
3.cat /etc/lsb-release; uname -a
result:DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=16.04
DISTRIB_CODENAME=xenial
DISTRIB_DESCRIPTION="Ubuntu 16.04.2 LTS"
Linux andypc 4.8.0-49-generic #52~16.04.1-Ubuntu SMP Thu Apr 20 10:55:59 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
4.lspci -nnk | grep -iA2 net
result:01:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller [10ec:8136] (rev 07)
Subsystem: Lenovo RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller [17aa:3833]
Kernel driver in use: r8169
Kernel modules: r8169
02:00.0 Network controller [0280]: Qualcomm Atheros Device [168c:0042] (rev 31)
Subsystem: Lenovo Device [17aa:0901]
Kernel driver in use: ath10k_pci
4.iwconfig
result:wlp2s0 IEEE 802.11 ESSID:"WRS55"
Mode:Managed Frequency:2.457 GHz Access Point: 98:DE:D0:E5:6B:64
Bit Rate=1 Mb/s Tx-Power=20 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Power Management:on
Link Quality=52/70 Signal level=-58 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:87 Invalid misc:1326 Missed beacon:0
enp1s0 no wireless extensions.
lo no wireless extensions.
5.rfkill list all
result:0: ideapad_wlan: Wireless LAN
Soft blocked: no
Hard blocked: no
1: ideapad_bluetooth: Bluetooth
Soft blocked: yes
Hard blocked: no
2: hci0: Bluetooth
Soft blocked: yes
Hard blocked: no
3: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
6.lsmod
Module Size Used by
ccm 20480 2
rfcomm 77824 0
bnep 20480 2
arc4 16384 2
rtsx_usb_ms 20480 0
memstick 20480 1 rtsx_usb_ms
uvcvideo 90112 0
snd_soc_skl 65536 0
snd_soc_skl_ipc 45056 1 snd_soc_skl
intel_rapl 20480 0
videobuf2_vmalloc 16384 1 uvcvideo
videobuf2_memops 16384 1 videobuf2_vmalloc
snd_soc_sst_ipc 16384 1 snd_soc_skl_ipc
snd_soc_sst_dsp 32768 1 snd_soc_skl_ipc
x86_pkg_temp_thermal 16384 0
videobuf2_v4l2 24576 1 uvcvideo
intel_powerclamp 16384 0
snd_hda_ext_core 28672 1 snd_soc_skl
snd_hda_codec_hdmi 45056 1
snd_soc_sst_match 16384 1 snd_soc_skl
videobuf2_core 40960 2 uvcvideo,videobuf2_v4l2
snd_hda_codec_realtek 86016 1
snd_hda_codec_generic 73728 1 snd_hda_codec_realtek
snd_soc_core 233472 1 snd_soc_skl
videodev 180224 3 uvcvideo,videobuf2_core,videobuf2_v4l2
coretemp 16384 0
snd_compress 20480 1 snd_soc_core
kvm 598016 0
ac97_bus 16384 1 snd_soc_core
irqbypass 16384 1 kvm
snd_pcm_dmaengine 16384 1 snd_soc_core
media 40960 2 uvcvideo,videodev
snd_hda_intel 36864 5
snd_hda_codec 135168 4 snd_hda_intel,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_codec_realtek
snd_hda_core 86016 7 snd_hda_intel,snd_hda_codec,snd_hda_ext_core,snd_soc_skl,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_codec_realtek
ath10k_pci 45056 0
ath10k_core 335872 1 ath10k_pci
crct10dif_pclmul 16384 0
crc32_pclmul 16384 0
ghash_clmulni_intel 16384 0
snd_hwdep 16384 1 snd_hda_codec
aesni_intel 167936 4
snd_pcm 110592 9 snd_hda_intel,snd_hda_codec,snd_pcm_dmaengine,snd_hda_ext_core,snd_hda_core,snd_soc_skl,snd_hda_codec_hdmi,snd_soc_core
aes_x86_64 20480 1 aesni_intel
snd_seq_midi 16384 0
snd_seq_midi_event 16384 1 snd_seq_midi
ath 32768 1 ath10k_core
lrw 16384 1 aesni_intel
glue_helper 16384 1 aesni_intel
hci_uart 98304 0
btusb 45056 0
btrtl 16384 1 btusb
btqca 16384 1 hci_uart
btbcm 16384 2 hci_uart,btusb
snd_rawmidi 32768 1 snd_seq_midi
btintel 16384 2 hci_uart,btusb
ablk_helper 16384 1 aesni_intel
cryptd 24576 3 ablk_helper,ghash_clmulni_intel,aesni_intel
bluetooth 557056 33 btrtl,hci_uart,btintel,btqca,bnep,btbcm,rfcomm,btusb
mac80211 761856 1 ath10k_core
cfg80211 581632 3 mac80211,ath,ath10k_core
snd_seq 69632 2 snd_seq_midi_event,snd_seq_midi
joydev 20480 0
input_leds 16384 0
snd_seq_device 16384 3 snd_seq,snd_rawmidi,snd_seq_midi
snd_timer 32768 2 snd_seq,snd_pcm
ideapad_laptop 24576 0
serio_raw 16384 0
sparse_keymap 16384 1 ideapad_laptop
ucsi 16384 0
tpm_crb 16384 0
mei_me 40960 0
snd 86016 22 snd_compress,snd_hda_intel,snd_hwdep,snd_seq,snd_hda_codec,snd_timer,snd_rawmidi,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_seq_device,snd_hda_codec_realtek,snd_soc_core,snd_pcm
mei 102400 1 mei_me
shpchp 36864 0
intel_lpss_acpi 16384 0
soundcore 16384 1 snd
mac_hid 16384 0
intel_pch_thermal 16384 0
intel_lpss 16384 1 intel_lpss_acpi
acpi_pad 24576 0
parport_pc 32768 0
ppdev 20480 0
lp 20480 0
parport 49152 3 lp,parport_pc,ppdev
autofs4 40960 2
rtsx_usb_sdmmc 28672 0
rtsx_usb 24576 2 rtsx_usb_sdmmc,rtsx_usb_ms
amdkfd 139264 1
amd_iommu_v2 20480 1 amdkfd
radeon 1515520 1
i915 1314816 105
psmouse 139264 0
ttm 102400 1 radeon
i2c_algo_bit 16384 2 radeon,i915
drm_kms_helper 167936 2 radeon,i915
syscopyarea 16384 1 drm_kms_helper
sysfillrect 16384 1 drm_kms_helper
sysimgblt 16384 1 drm_kms_helper
fb_sys_fops 16384 1 drm_kms_helper
drm 368640 9 radeon,i915,ttm,drm_kms_helper
r8169 81920 0
ahci 36864 3
mii 16384 1 r8169
libahci 32768 1 ahci
wmi 16384 1 ideapad_laptop
pinctrl_sunrisepoint 28672 0
i2c_hid 20480 0
video 40960 2 i915,ideapad_laptop
hid 122880 1 i2c_hid
pinctrl_intel 20480 1 pinctrl_sunrisepoint
fjes 28672 0
**my university guideline to connect wifi......https://www.urz.ovgu.de/urz/Unsere+Leistungen/Datennetz/Campus/WLAN/Anleitungen-p-1072.html
