Wifi's Internet disconnecting on my laptop?!

kanazky · 2012-10-03 00:37:09

Router: Linksys EA3500
Network Card: Broadcom 4313 Wireless -N

iwconfig NOT WORKING

wlan0     IEEE 802.11bgn  ESSID:"PwNz"  
          Mode:Managed  Frequency:2.452 GHz  Access Point: 20:AA:4B:75:69:0A   
          Bit Rate=72.2 Mb/s   Tx-Power=19 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality=57/70  Signal level=-53 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:4  Invalid misc:18   Missed beacon:0

iwconfig once I reconnect

wlan0     IEEE 802.11bgn  ESSID:"PwNz"  
          Mode:Managed  Frequency:2.452 GHz  Access Point: 20:AA:4B:75:69:0A   
          Bit Rate=72.2 Mb/s   Tx-Power=19 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality=53/70  Signal level=-57 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:1  Invalid misc:21   Missed beacon:0

Ive turned QoS off on my router in hopes my laptop would do that same, however didn't fix anything :I(

Just a heads up the icon says I am still connected to the network however the internet doesn't work, neither does accessing my 192.168.1.1

Also this seems to be a problem with gnome-shell, as I just switched my laptop over from i3 tiling and never encounter any problems with the wifi

Last edited by kanazky (2012-10-03 00:42:47)

karol · 2012-10-03 00:47:11

I know nothing about wireless, just wanted to mention, that a few other users seem to have issues: https://bbs.archlinux.org/viewtopic.php?id=149971 (Broadcom), https://bbs.archlinux.org/viewtopic.php?id=149964

Last edited by karol (2012-10-03 00:47:34)

kanazky · 2012-10-03 00:57:28

Thanks mate ill make sure to bookmark that post, in case a solution is found.

ewaller · 2012-10-03 02:15:45

Maybe I'm missing something. Why do you assert that iwconfig is not working? It appears to me that, in both cases, you are associated with an open access point called PwNz with a MAC address of 20:AA:4B:75:69:0A. This is the wireless equivalent of plugging in the cable.

I am guessing you missed the next step, which is to go and get an IP address.

What is the output of sudo ip link ??
Then, what is the output of ip addr ?? I'll bet one credit there is no address shown for your wireless device.

If the first ip command shows your wireless interface, but the second does not report an address, I win

If that is the case, try sudo dhcpcd wlan0 (or whatever your interface is called) and you will probably be good to go.

kanazky · 2012-10-03 03:08:02

Alright I will wait for it to disconnect and then try those commands. I figured it has to be gnome because the issue only appeared after switching from i3 tiling to gnome-shell w/ systemd.

the nm-applet tray icon still says there is a signal and is connected by appearance but when you try and access a website or internet service it times out or is unreachable, I just quickly disconnect and reconnect the wifi adapter and it works again... lol

Also its a WPA2 encrypted access point not open haha, I think that might be the problem as it reports encryption key: none even though I login to it using a WPA2 key...

Last edited by kanazky (2012-10-03 03:32:15)

kanazky · 2012-10-03 03:28:23

Heres the Results

sudo ip link

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN mode DEFAULT 
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: eth0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN mode DEFAULT qlen 1000
    link/ether f0:4d:a2:4d:e7:fd brd ff:ff:ff:ff:ff:ff
3: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DORMANT qlen 1000
    link/ether c0:cb:38:0a:cc:d0 brd ff:ff:ff:ff:ff:ff

sudo ip addr

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN 
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
3: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP qlen 1000
    link/ether c0:cb:38:0a:cc:d0 brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.112/24 brd 192.168.1.255 scope global wlan0
    inet6 fe80::c2cb:38ff:fe0a:ccd0/64 scope link 
       valid_lft forever preferred_lft forever

sudo dhcpcd wlan0

dhcpcd[12989]: dhcpcd already running on pid 12857 (/run/dhcpcd-wlan0.pid)

Did it give you any information that might help me out?
*note these were taken while my network said it was connected but the internet wasn't usable.

Last edited by kanazky (2012-10-03 03:29:42)

Stebalien · 2012-10-03 14:16:21

You have a connection and you have an IP address. Are your routes setup (what is the output of `ip route`?).
Also, somehow dhcpcd is getting started. Are you using NetworkManager (what daemons do you have enabled)?

ewaller · 2012-10-03 15:04:21

I think stebalien is correct. It seems very much like a route issue. Especially since you cannot ping 192.168.1.1. Can you ping 192.168.1.112 ?
Also, we might want to try disabling IPv6 for the time being. https://wiki.archlinux.org/index.php/IPv6#Disable_IPv6

Arch Linux

#1 2012-10-03 00:37:09

Wifi's Internet disconnecting on my laptop?!

#2 2012-10-03 00:47:11

Re: Wifi's Internet disconnecting on my laptop?!

#3 2012-10-03 00:57:28

Re: Wifi's Internet disconnecting on my laptop?!

#4 2012-10-03 02:15:45

Re: Wifi's Internet disconnecting on my laptop?!

#5 2012-10-03 03:08:02

Re: Wifi's Internet disconnecting on my laptop?!

#6 2012-10-03 03:28:23

Re: Wifi's Internet disconnecting on my laptop?!

#7 2012-10-03 14:16:21

Re: Wifi's Internet disconnecting on my laptop?!

#8 2012-10-03 15:04:21

Re: Wifi's Internet disconnecting on my laptop?!

Board footer