I have a EliteBook 8530w, with Intel WiFi 5300 too, and bought a new
D-Link DIR-855 with 5GHz WLAN and 802.11n. I've got the exact same
message.
uname -a
Linux alpha 2.6.31-12-generic #41-Ubuntu SMP Wed Oct 7 19:37:12 UTC 2009 x86_64
GNU/Linux
iwconfig wlan0 says something interessting:
wlan0 IEEE 802.11abgn ESSID:"my_wlan_5ghz"
Mode:Managed Frequency:5.22 GHz Access Point: 00:24:01:34:41:1C
Bit Rate=0 kb/s Tx-Power=15 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Power Management:off
Link Quality=69/70 Signal level=-41 dBm Noise level=-91 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
Bit Rate=0 kb/s?
rmmod iwlagn & modprobe iwlagn helps for me. Sometimes i need to do it
several times, then suddenly ping works, and sometimes for longer times,
sometimes only for a few seconds...
bye
falstaff
--
[karmic] Intel WiFi Link 5300 sometimes not working on 5 GHz
https://bugs.launchpad.net/bugs/420678
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