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zero7404
October 13th, 2008, 04:07 PM
i get inconsistent behavior from my wireless connection in ubuntu, trying to figure out how to solve it....

is there a way to rebuild the wireless networking or remove the drivers and reinstall them ? i have a feeling that some updates i performed might have messed up the wireless on my installation.

thanks

superprash2003
October 13th, 2008, 05:26 PM
post output of the following commands
1)iwconfig
2)lshw -C network

zero7404
October 13th, 2008, 05:57 PM
iwconfig:

lo no wireless extensions.

eth0 no wireless extensions.

wmaster0 no wireless extensions.

wlan0 IEEE 802.11abgn ESSID:"dlink07"
Mode:Managed Frequency:2.422 GHz Access Point: 00:1C:F0:57:42:1B
Bit Rate=48 Mb/s Tx-Power=14 dBm
Retry min limit:7 RTS thr:off Fragment thr=2352 B
Power Management:off
Link Quality=77/100 Signal level:-65 dBm Noise level=-96 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0

pan0 no wireless extensions.

lshw -C network:

WARNING: you should run this program as super-user.
*-network
description: Wireless interface
product: PRO/Wireless 4965 AG or AGN Network Connection
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:0c:00.0
logical name: wmaster0
version: 61
serial: 00:1f:3b:ca:55:11
width: 64 bits
clock: 33MHz
capabilities: bus_master cap_list logical ethernet physical wireless
configuration: broadcast=yes driver=iwlagn ip=192.168.0.102 latency=0 module=iwlagn multicast=yes wireless=IEEE 802.11abgn
*-network
description: Ethernet interface
product: NetXtreme BCM5754M Gigabit Ethernet PCI Express
vendor: Broadcom Corporation
physical id: 0
bus info: pci@0000:09:00.0
logical name: eth0
version: 02
serial: 00:21:9b:cf:47:72
width: 64 bits
clock: 33MHz
capabilities: bus_master cap_list ethernet physical
configuration: broadcast=yes driver=tg3 driverversion=3.94 firmware=5754m-v3.23 latency=0 module=tg3 multicast=yes
*-network DISABLED
description: Ethernet interface
physical id: 2
logical name: pan0
serial: 16:f8:79:53:b3:77
capabilities: ethernet physical
configuration: broadcast=yes driver=bridge driverversion=2.3 firmware=N/A multicast=yes

superprash2003
October 14th, 2008, 05:11 PM
well you seem to be connected to dlink07.. please post output of ifconfig.. are you able to ping your router?

zero7404
October 14th, 2008, 09:49 PM
ifconfig as follows


eth0 Link encap:Ethernet HWaddr 00:21:9b:cf:47:72
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)
Interrupt:17

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:16436 Metric:1
RX packets:134 errors:0 dropped:0 overruns:0 frame:0
TX packets:134 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:6284 (6.2 KB) TX bytes:6284 (6.2 KB)

wlan0 Link encap:Ethernet HWaddr 00:1f:3b:ca:55:11
inet addr:192.168.0.102 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::21f:3bff:feca:5511/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1053 errors:0 dropped:0 overruns:0 frame:0
TX packets:1008 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1002437 (1.0 MB) TX bytes:170849 (170.8 KB)

wmaster0 Link encap:UNSPEC HWaddr 00-1F-3B-CA-55-11-00-00-00-00-00-00-00-00-00-00
UP BROADCAST RUNNING 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)


i used network tools to ping 192.168.0.1 (router IP) for 5 times, all 5 were sucessful.

the problem occurs when i start up ubuntu (i have a dual-boot configuration), not always. i wait for drive activity to be done, then try to connect. i have since turned off automatic connect under network connections>edit for this connection. my last few manual connections have been fine. when i experience the problem, i restart my machine into vista and the connection seems to be fine.

not sure if something is wrong with the network config on the installation or not, so i deleted network manager yesterday and reinstalled it, that did not seem to change things.

superprash2003
October 15th, 2008, 05:03 PM
so you are getting an ip... you are able to ping the router.. are you able to access the internet?? post output of ping google.com

zero7404
October 15th, 2008, 05:16 PM
so you are getting an ip... you are able to ping the router.. are you able to access the internet?? post output of ping google.com

yes i am able to access the internet. i posted my problem because almost 1/2 the time when i try to connect to my network it keeps returning with the password prompt window to enter the key and when it does that, it won't connect no matter how many times i reenter my network passkey.

it seems as tho this is a glitch with the OS and bootup.

i am about to scrap ubuntu completely....

as recently some start up problems have surfaced, after beginning normal bootup, i get a series of loud beeps the only way to stop it is to shut the machine off.
when i load up with the recovery option, do a check on the file system, everything passes and i continue normal bootup into the OS fine.