Laptop connected to wifi but no internet

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inedibly_indelible

Laptop connected to wifi but no internet

Post by inedibly_indelible »

So I recently moved to another country for an exchange semester and for some reason my wifi has decided to stop working. I can connect to APs, I can have excellent signal strength, but I can't actually load any web pages or ping anything. I know it's my laptop because my phone and other computers can connect fine. Chrome and Firefox both hang when loading ("Resolving host...").

Here's some info:

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sudo /usr/lib/linuxmint/mintWifi/mintWifi.py
-------------------------
* I. scanning WIFI PCI devices...
  -- Realtek Semiconductor Co., Ltd. RTL8723AE PCIe Wireless Network Adapter
      ==> PCI ID = 10ec:8723
-------------------------
* II. querying ndiswrapper...
-------------------------
* III. querying iwconfig...
eth0      no wireless extensions.

lo        no wireless extensions.

wlan0     IEEE 802.11bgn  ESSID:"WG"  
          Mode:Managed  Frequency:2.462 GHz  Access Point: 78:54:2E:F4:C9:2A   
          Bit Rate=72.2 Mb/s   Tx-Power=20 dBm   
          Retry  long limit:7   RTS thr=2347 B   Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality=44/70  Signal level=-66 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:1   Missed beacon:0

-------------------------
* IV. querying ifconfig...
eth0      Link encap:Ethernet  HWaddr 00:90:f5:e8:b0:e0  
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:2999 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2999 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:311612 (311.6 KB)  TX bytes:311612 (311.6 KB)

wlan0     Link encap:Ethernet  HWaddr 24:fd:52:c0:1b:b1  
          inet addr:192.168.0.110  Bcast:192.168.0.255  Mask:255.255.255.0
          inet6 addr: fe80::26fd:52ff:fec0:1bb1/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:6619 errors:0 dropped:0 overruns:0 frame:0
          TX packets:10071 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:6848579 (6.8 MB)  TX bytes:1249895 (1.2 MB)

-------------------------
* V. querying DHCP...
RTNETLINK answers: File exists
-------------------------
* VI. querying nslookup google.com...
;; connection timed out; no servers could be reached

Some other potentially useful info:

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cat /etc/lsb-release

DISTRIB_ID=LinuxMint
DISTRIB_RELEASE=17.1
DISTRIB_CODENAME=rebecca
DISTRIB_DESCRIPTION="Linux Mint 17.1 Rebecca"

uname -a

DISTRIB_ID=LinuxMint
DISTRIB_RELEASE=17.1
DISTRIB_CODENAME=rebecca
DISTRIB_DESCRIPTION="Linux Mint 17.1 Rebecca"

lspci -nnk | grep -iA2 net

03:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8723AE PCIe Wireless Network Adapter [10ec:8723]
	Subsystem: Realtek Semiconductor Co., Ltd. Device [10ec:0726]
	Kernel driver in use: rtl8723ae
--
04:00.2 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 0a)
	Subsystem: CLEVO/KAPOK Computer Device [1558:0650]
	Kernel driver in use: r8169

Code: Select all

rfkill list all

1: phy0: Wireless LAN
	Soft blocked: no
	Hard blocked: no
2: hci0: Bluetooth
	Soft blocked: no
	Hard blocked: no


PING 192.168.0.1 (192.168.0.1) 56(84) bytes of data.
^C
--- 192.168.0.1 ping statistics ---
12 packets transmitted, 0 received, 100% packet loss, time 11088ms



ping 8.8.8.8
PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
^C
--- 8.8.8.8 ping statistics ---
17 packets transmitted, 0 received, 100% packet loss, time 16128ms

Thanks for any suggestions you have :)
Last edited by LockBot on Wed Dec 28, 2022 7:16 am, edited 1 time in total.
Reason: Topic automatically closed 6 months after creation. New replies are no longer allowed.
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txba516
Level 4
Level 4
Posts: 207
Joined: Fri Aug 10, 2007 11:57 am
Location: Atlanta, GA

Re: Laptop connected to wifi but no internet

Post by txba516 »

Hi,

Do you know if you are receiving a default route? (should be the first entry in the route table and says default for the Destination).
If so, can you ping it?
Is this a school network, home network, or other wireless? Do you know if you have to provide credentials to authenticate on the wireless network or an upstream proxy?
Does the network have NAC or some other level of restriction implemented? Ref http://en.wikipedia.org/wiki/Network_Ac ... in_English

Cheers!
LM17.2 x64 Cinnamon
Help the forums get answers faster! Mark your fixed problem thread as [SOLVED]
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JeremyB
Level 21
Level 21
Posts: 13851
Joined: Fri Feb 21, 2014 8:17 am

Re: Laptop connected to wifi but no internet

Post by JeremyB »

Does

Code: Select all

iw reg get
show the correct country code or the generic 00?

And what is the result of

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cat /etc/resolv.conf
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