Connection problems and low bandwidth w/ wireless

gronauj · October 19, 2009, 9:54pm

Hello all,
I’ve been working on this problem for a week by reading forum listing and tutorials. I’m at the end of my rope.

I have and ACER TravelMate 4670 with an internal modem Pro/Wireless 3945ABG. After the latest kernel update, I lost connection through the linux driver iwl3945. I’ve installed ndiswrapper and with the WinXP driver w39n51, the modem is now detected and attempts to connect to my 2Wire router. But, it still disconnects.

I’m a newbie. Could someone give me a hand please? I will be very grateful.

-JG

gronauj · October 19, 2009, 10:33pm

Here are some settings which I found:

john-laptop:~ # iwconfig wlan0
wlan0 IEEE 802.11g ESSID:off/any
Mode:Managed Frequency:2.462 GHz Access Point: Not-Associated
Bit Rate:54 Mb/s
RTS thr:35613 B Fragment thr:35613 B
Encryption key:off
Power Management max timeout:0us mode:All packets received
Link Quality:0 Signal level:0 Noise level:0
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0

john-laptop:~ # chkconfig
SuSEfirewall2_init on
SuSEfirewall2_setup on
aaeventd on
acpid on
alsasound on
atd off
auditd on
autofs off
autoyast off
avahi-daemon on
avahi-dnsconfd off
bgpd off
bluetooth off
bluetooth-coldplug on
chargen off
chargen-udp off
clamav-milter on
clamd on
cron on
cups on
cups-lpd off
daytime off
daytime-udp off
dbus on
ddclient off
discard off
discard-udp off
dnsmasq off
earlysyslog on
earlyxdm on
echo off
echo-udp off
fbset on
fetchmail off
freshclam on
gpm off
haldaemon on
irda off
java.binfmt_misc on
joystick off
kbd on
kexec off
laptop-mode on
lirc off
mdadmd off
microcode.ctl off
multipathd off
netstat off
network on
network-remotefs on
nfs on
nmb on
nscd on
ntp on
open-iscsi off
openct off
openvpn off
ospf6d off
ospfd off
pcscd off
pm-profiler off
postfix on
powerd off
racoon off
radvd off
random on
raw off
ripd off
ripngd off
rpasswdd off
rpcbind on
rpmconfigcheck off
rsync off
rsyncd off
sane-port off
servers off
services off
setserial off
skeleton.compat off
smartd on
smb on
smbfs off
smolt off
smpppd on
spamd on
splash on
splash_early on
squid off
sshd on
stopblktrace on
swat off
syslog on
systat off
tftp off
time off
time-udp off
uuidd off
vnc off
waitfornm off
xdm on
xfs off
xinetd off
ypbind off
zebra off

tuxituk · October 19, 2009, 10:58pm

Hi,

have you any security on your wireless network ?? You need to enter the wep/wpa key into your config for your wireless card.

This can be done via network manager if using KDE.

hth
J

gronauj · October 20, 2009, 8:11am

Yes, both network manager and ifup are configured with Wep keys as Open Wep connections. Still no reliable connection.

gronauj · October 20, 2009, 8:13am

Would posting more data to this forum help to figure out what is wrong? What would you like?

gronauj · October 20, 2009, 9:50pm

Password:
john-laptop:~ # sudo ifconfig wlan0 down
john-laptop:~ # sudo ifconfig wlan0 up
john-laptop:~ # sudo iwconfig wlan0 essid 2Wire398 key off
john-laptop:~ # ping google.com
ping: unknown host google.com
john-laptop:~ # sudo dhclient wlan0
Internet Systems Consortium DHCP Client V3.1.1
Copyright 2004-2008 Internet Systems Consortium.
All rights reserved.
For info, please visit http://www.isc.org/sw/dhcp/

Listening on LPF/wlan0/00:13:02:1c:c9:24
Sending on LPF/wlan0/00:13:02:1c:c9:24
Sending on Socket/fallback
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 5
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 8
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 10
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 11
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 13
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 12
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 2
No DHCPOFFERS received.
No working leases in persistent database - sleeping.
john-laptop:~ #

lwfinger · October 20, 2009, 10:29pm

On 10/20/2009 02:56 PM, gronauj wrote:
>
> Password:
> john-laptop:~ # sudo ifconfig wlan0 down
> john-laptop:~ # sudo ifconfig wlan0 up
> john-laptop:~ # sudo iwconfig wlan0 essid 2Wire398 key off
> john-laptop:~ # ping google.com
> ping: unknown host google.com
> john-laptop:~ # sudo dhclient wlan0
> Internet Systems Consortium DHCP Client V3.1.1
> Copyright 2004-2008 Internet Systems Consortium.
> All rights reserved.
> For info, please visit http://www.isc.org/sw/dhcp/
>
> Listening on LPF/wlan0/00:13:02:1c:c9:24
> Sending on LPF/wlan0/00:13:02:1c:c9:24
> Sending on Socket/fallback
> DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 5
> DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 8
> DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 10
> DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 11
> DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 13
> DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 12
> DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 2
> No DHCPOFFERS received.
> No working leases in persistent database - sleeping.
> john-laptop:~ #

Did you actually get a wireless connection? What does ‘iwconfig’ show?

gronauj · October 21, 2009, 2:20am

Hello there, here is the iwconfig that you requested.

Password:
john-laptop:~ # iwconfig
lo no wireless extensions.

wlan0 IEEE 802.11g ESSID:off/any
Mode:Managed Frequency:2.462 GHz Access Point: Not-Associated
Bit Rate:54 Mb/s
RTS thr:35613 B Fragment thr:35613 B
Encryption key:off
Power Management max timeout:0us mode:All packets received
Link Quality:0 Signal level:0 Noise level:0
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0

eth0 no wireless extensions.

john-laptop:~ #

It never really connects. KwifiManager shows a connection speed of 54 MBit/s but no access point is shown and the local IP is unavailable. This is shown despite my adding of the router’s access point to the ifup and Network Manager settings.

Thanks,
JG