wpi -- periodic disconnections

[Pietro Cerutti]

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Hi list,

I can't get my if_wpi (Intel(R) PRO/Wireless 3945ABG) stay connected to
my WPA-enabled access point for more than a few hours. Moreover, when it
happens, I have to unload the module, reload it and restart
wpa_supplicant in order to reconnect to the network. Any ideas?

This is what appears on the console just before the link dies + when I
try to reconnect without unloading/reloading the module:

Michael MIC failure wireless event: keyix=0 src_addr=00:1a:70:47:cc:5c
Michael MIC failure detected
WPA: Sending EAPOL-Key Request (error=1 pairwise=1 ptk_set=1 len=99)
Michael MIC failure wireless event: keyix=0 src_addr=00:1a:70:47:cc:5c
Michael MIC failure detected
WPA: Sending EAPOL-Key Request (error=1 pairwise=1 ptk_set=1 len=99)
TKIP countermeasures started
wpa_driver_bsd_set_countermeasures: enabled=1
State: COMPLETED -> DISCONNECTED
wpa_driver_bsd_deauthenticate
wpa_driver_bsd_del_key: keyidx=0
wpa_driver_bsd_del_key: keyidx=1
wpa_driver_bsd_del_key: keyidx=2
wpa_driver_bsd_del_key: keyidx=3
wpa_driver_bsd_del_key: addr=00:1a:70:47:cc:5c keyidx=0
ioctl[SIOCS80211, op 20, len 7]: Can't assign requested address
EAPOL: External notification - portEnabled=0
EAPOL: SUPP_PAE entering state DISCONNECTED
EAPOL: SUPP_BE entering state INITIALIZE
EAPOL: External notification - portValid=0
Added BSSID 00:1a:70:47:cc:5c into blacklist
CTRL-EVENT-DISCONNECTED - Disconnect event - remove keys
wpa_driver_bsd_del_key: keyidx=0
wpa_driver_bsd_del_key: keyidx=1
wpa_driver_bsd_del_key: keyidx=2
wpa_driver_bsd_del_key: keyidx=3
wpa_driver_bsd_del_key: addr=00:1a:70:47:cc:5c keyidx=0
ioctl[SIOCS80211, op 20, len 7]: Can't assign requested address
State: DISCONNECTED -> DISCONNECTED
EAPOL: External notification - portEnabled=0
EAPOL: External notification - portValid=0
EAPOL: External notification - EAP success=0
RTM_IFINFO: Interface 'wpi0' DOWN
Configured interface was removed.
State: DISCONNECTED -> DISCONNECTED
EAPOL: External notification - portEnabled=0
EAPOL: External notification - portValid=0
EAPOL: External notification - EAP success=0
Removing interface wpi0
State: DISCONNECTED -> DISCONNECTED
No keys have been configured - skip key clearing
EAPOL: External notification - portEnabled=0
EAPOL: External notification - portValid=0
wpa_driver_bsd_set_wpa: enabled=0
wpa_driver_bsd_set_wpa_internal: wpa=0 privacy=0
ioctl[SIOCS80211, op 22, len 0]: Device not configured
ioctl[SIOCS80211, op 17, arg 0x0]: Device not configured
ioctl[SIOCS80211, op 26, arg 0x0]: Device not configured
Failed to disable WPA in the driver.
wpa_driver_bsd_set_drop_unencrypted: enabled=0
ioctl[SIOCS80211, op 18, arg 0x0]: Device not configured
wpa_driver_bsd_set_countermeasures: enabled=0
ioctl[SIOCS80211, op 25, arg 0x0]: Device not configured
No keys have been configured - skip key clearing
Removed BSSID 00:1a:70:47:cc:5c from blacklist (clear)
Cancelling scan request
Cancelling authentication timeout
SIOCGIFFLAGS: Device not configured
wpa_driver_bsd_set_wpa_internal: wpa=0 privacy=0
ioctl[SIOCS80211, op 22, len 0]: Device not configured
ioctl[SIOCS80211, op 17, arg 0x0]: Device not configured
ioctl[SIOCS80211, op 26, arg 0x0]: Device not configured
ioctl[SIOCS80211, op 16, arg 0x1]: Device not configured
wpa_driver_bsd_deinit: failed to restore roaming state

Thanks!
- --
Pietro Cerutti
gahr at FreeBSD.org

PGP Public Key:
http://gahr.ch/pgp

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