LinuxQuestions.org

LinuxQuestions.org (/questions/)
-   Linux - Networking (http://www.linuxquestions.org/questions/linux-networking-3/)
-   -   Wireless issues -- no network on wicd (http://www.linuxquestions.org/questions/linux-networking-3/wireless-issues-no-network-on-wicd-803132/)

noviciado 04-20-2010 05:01 PM

Wireless issues -- no network on wicd
 
Hello,

I've been using Slackware 13 without a problem for several months now, and the wireless card suddenly went undetected for no apparent reason. I switched pci slots and kept rebooting, checking with lspci, but it continued to be undetected. Without changing anything, other than giving up for the night, I rebooted the next day, and it was once again detected, though failing to connect to the wireless network.
I'm not sure if this is a sign of hardware issue or not..

here's some output:

lspci -nn
Code:

03:00.0 Network controller [0280]: RaLink RT2561/RT61 802.11g PCI [1814:0301]
ifconfig
Code:

wlan0    Link encap:Ethernet  HWaddr 00:1f:1f:1b:33:9b 
          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)

iwlist scan
Code:

wlan0    No scan results
lshw
Code:

  *-network:0
      description: Wireless interface
      product: RT2561/RT61 802.11g PCI
      vendor: RaLink
      physical id: 0
      bus info: pci@0000:03:00.0
      logical name: wmaster0
      version: 00
      serial: 00:1f:1f:1b:33:9b
      width: 32 bits
      clock: 33MHz
      capabilities: pm bus_master cap_list logical ethernet physical wireless
      configuration: broadcast=yes driver=rt61pci latency=64 module=rt61pci multicast=yes wireless=IEEE 802.11bg
  *-network:1
      description: Ethernet interface
      product: 82562ET/EZ/GT/GZ - PRO/100 VE (LOM) Ethernet Controller
      vendor: Intel Corporation
      physical id: 8
      bus info: pci@0000:03:08.0
      logical name: eth0
      version: 03
      serial: 00:13:20:43:f2:60
      size: 10MB/s
      capacity: 100MB/s
      width: 32 bits
      clock: 33MHz
      capabilities: pm bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
      configuration: autonegotiation=on broadcast=yes driver=e100 driverversion=3.5.23-k6-NAPI duplex=half firmware=N/A latency=64 link=no maxlatency=56 mingnt=8 module=e100 multicast=yes port=MII speed=10MB/s

I was originally using /etc/rc.d/rc.inet1.conf for my wireless configuration, but commented this out and tried wicd. no networks are detected (but I can confirm the network is up on another computer). I also tried booting debian from a live disk, but couldn't get things working there either.

I made sure wireless was detecting wlan0 in wicd and added my user to group netdev.

Thanks for reading. Any suggestions welcome.

**EDIT**
I just noticed the wireless networking subforum..
Thanks in advance if a moderator reads this and is able to move the post.

nimnull22 04-20-2010 06:57 PM

What will be an output of next commands:
ifdown wlan0
ifup wlan0

and after
dmesg | tail -n 20

Thanks

noviciado 04-20-2010 09:51 PM

hm, I have no ifup/ifdown, but I assume ifconfig wlan0 up/down is what you're after?

Code:

bash-3.1# ifconfig wlan0 up
bash-3.1# ifconfig wlan0 down
bash-3.1# dmesg | tail -n 20
/dev/vmnet: open called by PID 3429 (vmnet-netifup)
/dev/vmnet: port on hub 1 successfully opened
/dev/vmnet: open called by PID 3432 (vmnet-dhcpd)
/dev/vmnet: hub 8 does not exist, allocating memory.
/dev/vmnet: port on hub 8 successfully opened
/dev/vmnet: open called by PID 3436 (vmnet-natd)
/dev/vmnet: port on hub 8 successfully opened
/dev/vmnet: open called by PID 3437 (vmnet-netifup)
/dev/vmnet: port on hub 8 successfully opened
/dev/vmnet: open called by PID 3420 (vmnet-bridge)
/dev/vmnet: hub 0 does not exist, allocating memory.
/dev/vmnet: port on hub 0 successfully opened
bridge-eth0: up
ADDRCONF(NETDEV_UP): eth0: link is not ready
bridge-eth0: attached
bridge-eth0: disabling the bridge
bridge-eth0: down
bridge-eth0: detached
vmnet1: no IPv6 routers present
vmnet8: no IPv6 routers present


nimnull22 04-20-2010 10:06 PM

Very interesting.
Can you please, type in root console:
ip link set wlan0 up

and then:

ip link show

Post output please.

noviciado 04-20-2010 10:26 PM

Code:

bash-3.1# ip link set wlan0 up
bash-3.1# ip link show
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
2: eth0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN qlen 1000
    link/ether 00:13:20:43:f2:60 brd ff:ff:ff:ff:ff:ff
3: wmaster0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UNKNOWN qlen 1000
    link/ieee802.11 00:1f:1f:1b:33:9b brd ff:ff:ff:ff:ff:ff
4: wlan0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN qlen 1000
    link/ether 00:1f:1f:1b:33:9b brd ff:ff:ff:ff:ff:ff
5: vmnet1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UNKNOWN qlen 1000
    link/ether 00:50:56:c0:00:01 brd ff:ff:ff:ff:ff:ff
6: vmnet8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UNKNOWN qlen 1000
    link/ether 00:50:56:c0:00:08 brd ff:ff:ff:ff:ff:ff


noviciado 04-24-2010 03:10 AM

anyone have an idea about the problem from all this output?

nimnull22 04-24-2010 02:41 PM

Question is what is your computer OS configuration and what is "vmnet" doing there. Is there any virtual machine on your computer?

noviciado 04-25-2010 01:18 PM

The OS is Slackware 13.0 (2.6.29.6-smp), and yes there is a virtual machine on the computer (it never conflicted with my wireless for the past 5 months or so, though, so I don't know if there's any reason to suspect it as the culprit).
I swapped the pci wireless card into an older computer, and it works just fine, so I know the problem does not lie there either.

noviciado 04-27-2010 10:27 PM

no one has a clue?

noviciado 05-06-2010 02:11 AM

I'll give this another bump...

Is this just difficult to diagnose? Any other output I can offer?

nimnull22 05-07-2010 12:44 AM

bash-3.1# ifconfig wlan0 up
bash-3.1# ifconfig wlan0 down
And result is:

bridge-eth0: up
ADDRCONF(NETDEV_UP): eth0: link is not ready
bridge-eth0: attached
bridge-eth0: disabling the bridge
bridge-eth0: down
bridge-eth0: detached
vmnet1: no IPv6 routers present
vmnet8: no IPv6 routers present

Look: you told: bring WLAN0 up, but script brought UP eth0 as a bridge.
You know, it is your computer and your configuration, may be you just analyze it.

noviciado 05-17-2010 02:15 PM

I have no idea how to analyze that....but it appears that I don't have to. Doing nothing else but coming back to the computer a few days later, the network gets brought up automatically. I don't know if that's a sign of hardware failing, but the problem came and went without me changing any settings. Thanks for your help anyhow.


All times are GMT -5. The time now is 08:04 PM.