Thread: Problem in connecting to WiFi in Ubuntu 11.04

hi,

enable network , enable wireless checked in network manager. wifi connections not listed lists , connects wifi.

have checked wireless troubleshooting guide scoured internet find solution have found nothing has worked. post recommended information mentioned in http://ubuntuforums.org/showthread.php?p=6183681.

acer@acer-aspire-5050:~$ lspci -nn | grep 'atheros'
08:04.0 ethernet controller [0200]: atheros communications inc. ar2413 802.11bg nic [168c:001a] (rev 01)

acer@acer-aspire-5050:~$ ifconfig
eth0 link encap:ethernet hwaddr 00:16:36:f4:c6:d9
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)
interrupt:20 base address:0xa000

lo link encap:local loopback
inet addr:127.0.0.1 mask:255.0.0.0
inet6 addr: ::1/128 scope:host
loopback running mtu:16436 metric:1
rx packets:384 errors:0 dropped:0 overruns:0 frame:0
tx packets:384 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
rx bytes:28928 (28.9 kb) tx bytes:28928 (28.9 kb)

wlan0 link encap:ethernet hwaddr 00:19:7d:c3:fc:e7
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)

acer@acer-aspire-5050:~$ iwconfig
lo no wireless extensions.

eth0 no wireless extensions.

wlan0 ieee 802.11bg essidff/any
mode:managed access point: not-associated tx-power=20 dbm
retry long limit:7 rts thrff fragment thrff
power managementff

acer@acer-aspire-5050:~$ lsmod | grep "ath5k"
ath5k 144412 0
ath 19141 1 ath5k
mac80211 257001 1 ath5k
cfg80211 156212 3 ath5k,ath,mac80211

acer@acer-aspire-5050:~$ sudo lshw -c network
*-network:0
description: ethernet interface
product: rtl-8139/8139c/8139c+
vendor: realtek semiconductor co., ltd.
physical id: 2
bus info: pci@0000:08:02.0
logical name: eth0
version: 10
serial: 00:16:36:f4:c6:d9
size: 10mbit/s
capacity: 100mbit/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=8139too driverversion=0.9.28 duplex=half latency=64 link=no maxlatency=64 mingnt=32 multicast=yes port=mii speed=10mbit/s
resources: irq:20 ioport:a000(size=256) memory:b0211c00-b0211cff

*-network:1
description: wireless interface
product: ar2413 802.11bg nic
vendor: atheros communications inc.
physical id: 4
bus info: pci@0000:08:04.0
logical name: wlan0
version: 01
serial: 00:19:7d:c3:fc:e7
width: 32 bits
clock: 33mhz
capabilities: pm bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=ath5k driverversion=2.6.38-8-generic firmware=n/a latency=168 link=no maxlatency=28 mingnt=10 multicast=yes wireless=ieee 802.11bg
resources: irq:21 memory:b0200000-b020ffff

acer@acer-aspire-5050:~$ iwlist scan
lo interface doesn't support scanning.

eth0 interface doesn't support scanning.

wlan0 no scan results

acer@acer-aspire-5050:~$ lsb_release -d
description: ubuntu 11.04

acer@acer-aspire-5050:~$ uname -mr
2.6.38-8-generic i686

acer@acer-aspire-5050:~$ sudo /etc/init.d/networking restart
* running /etc/init.d/networking restart deprecated because may not enable again interfaces
* reconfiguring network interfaces... [ ok ]

acer@acer-aspire-5050:~$ dmesg | grep wlan0
[ 19.849280] addrconf(netdev_up): wlan0: link not ready
acer@acer-aspire-5050:~$ dmesg | egrep 'ath|firm'
[ 1.482592] device-mapper: multipath: version 1.2.0 loaded
[ 1.482595] device-mapper: multipath round-robin: version 1.0.0 loaded
[ 19.058900] ath5k 0000:08:04.0: pci int -> gsi 21 (level, low) -> irq 21
[ 19.059878] ath5k 0000:08:04.0: registered 'phy0'
[ 19.778274] ath: eeprom regdomain: 0x63
[ 19.778279] ath: eeprom indicates should expect direct regpair map
[ 19.778285] ath: country alpha2 being used: 00
[ 19.778288] ath: regpair used: 0x63
[ 19.802944] ath5k phy0: atheros ar2413 chip found (mac: 0x78, phy: 0x45)

acer@acer-aspire-5050:~$ rfkill list all
0: phy0: wireless lan
soft blocked: no
hard blocked: no

i trying connect appartment provided wifi, don't have option connect wired network , trouble shoot. eth0 works fine.

please me in getting fixed. in advance !!!

Forum The Ubuntu Forum Community Ubuntu Official Flavours Support Networking & Wireless [ubuntu] Problem in connecting to WiFi in Ubuntu 11.04

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