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Old 05-30-2006, 11:30 AM   #1
arobinson74
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Registered: Nov 2002
Location: Lone Tree, CO
Distribution: Xubuntu Gutsy
Posts: 174

Rep: Reputation: 30
Flaky connection using ipw2200 and wpa_supplicant


I have been having a "flaky" connection with my wireless. I have the same laptop as my co-workers and they have not been having an issue, so I know it is not a question of wireless strength.

My setup:
ThinkPad T43
Slackware 10.2
2.6.15 RC 2 kernel
ipw2200 drivers
wpa_supplicant 0.4.7

What happens (problems):
  1. I often get a timeout during if up (I have to restart my eth0 several times on occassion for dhcpd to be able to get an IP address)
  2. My signal strength, usually around 90% will drop to 0% for sometimes around a second, sometimes much longer.

I haven't been able to find out why (I am not too familiar with wireless on linux enough to determine how to debug well).

This problem happens when I am in a WEP environment and in a WPA environment

When my signal strength is 0, here is the iwconfig output:

Code:
eth0      unassociated  ESSID:"..."  Nickname:"..."
          Mode:Managed  Channel=0  Access Point: xx:xx:xx:xx:xx:xx
          Bit Rate=0 kb/s   Tx-Power=20 dBm
          Retry limit:7   RTS thr:off   Fragment thr:off
          Encryption key:...   Security mode:open
          Power Management:off
          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
Here is the setup of my card:
/etc/wpa_supplicant.conf
Code:
#ctrl_interface=/var/run/wpa_supplicant
#ctrl_interface_group=wheel
#eapol_version=1
#ap_scan=2
#fast_reauth=1
network={
        ssid="..."
        key_mgmt=NONE
        auth_alg=OPEN
        wep_key0=...
        wep_tx_keyidx=0
        priority=5
}
network={
        ssid="..."
        psk=...
}
/etc/rc.d/rc.inet1.conf:
Code:
# Config information for eth0:
IPADDR[0]=""
NETMASK[0]=""
USE_DHCP[0]="yes"
DHCP_HOSTNAME[0]="..."
WLAN_WPA[0]="wpa_supplicant"
One of my co-workers is on Debian with the same Kernel, and same ipw2200 drivers but does not use wpa_supplicant and has not issues.

Any idea on what the problem is or at least suggestions on how to debug it?
 
Old 06-01-2006, 02:38 PM   #2
arobinson74
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Registered: Nov 2002
Location: Lone Tree, CO
Distribution: Xubuntu Gutsy
Posts: 174

Original Poster
Rep: Reputation: 30
Looks like I have it fixed.

Upgraded to 2.6.16.19 kernel
Installed:
ieee80211-1.1.13 ipw2200-1.1.2 ipw2200-fw-3.0

Seems to be much better so far.
 
  


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