Hello,

I never really understood wireless in linux, it has always "just
worked".  I use wicd although I don't really even know what that
means.  I have no clue what is a wpa supplicant, ndis, etc.

I now have a problem.  Please point me toward the tools I should use
to diagnose and fix the problem.  I tried to fix this problem by
running wicd-client from the command line hoping to see some stderr
messages to help diagnose, but no luck.  Also dmesg is not helpful.

Problem:

I used a linksys router for years.  It appeared as a single SSID that
I connected to. Configured with wicd-client.  Everything worked great
under gentoo.

I throw away the linksys and purchase a new "apple airport express".
This router works fine with my apple machines.  On gentoo, wicd-client
shows two SSIDs with identical names for this one router!  One is on
"channel 11" and one is on "channel 157".  Not sure this matters.  I
specify my password for both of them and specify one of them to
"connect automatically".  The connection with one (or both?) of the
SSIDs stays live for 5-10 minutes, then disconnects.  I can get it to
reconnect by simply opening wicd-client, highlighting one of the two
SSIDs, and clicking connect.  Repeat every 5-10 minutes.

Question: What tools or logs can I use to understand why my wireless
connection disconnects every 5-10 minutes?

FYI this is what dmesg says during one of these disconnect/reconnect cycles:

[55519.603007] cfg80211: Calling CRDA to update world regulatory domain
[55520.041137] iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S
[55520.041381] iwlwifi 0000:03:00.0: Radio type=0x0-0x3-0x1
[55520.195568] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[55520.494633] e1000e 0000:00:19.0: irq 44 for MSI/MSI-X
[55520.595455] e1000e 0000:00:19.0: irq 44 for MSI/MSI-X
[55520.598916] ADDRCONF(NETDEV_UP): eth0: link is not ready
[55550.414298] iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S
[55550.414523] iwlwifi 0000:03:00.0: Radio type=0x0-0x3-0x1
[55550.551957] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[55966.719991] iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S
[55966.720250] iwlwifi 0000:03:00.0: Radio type=0x0-0x3-0x1
[55966.863374] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[55967.147380] e1000e 0000:00:19.0: irq 44 for MSI/MSI-X
[55967.248317] e1000e 0000:00:19.0: irq 44 for MSI/MSI-X
[55967.251736] ADDRCONF(NETDEV_UP): eth0: link is not ready
[55967.301004] iwlwifi 0000:03:00.0: L1 Enabled; Disabling L0S
[55967.301252] iwlwifi 0000:03:00.0: Radio type=0x0-0x3-0x1
[55967.452333] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[55969.637135] wlan0: authenticate with 7c:d1:c3:cd:b9:be
[55969.641690] wlan0: send auth to 7c:d1:c3:cd:b9:be (try 1/3)
[55969.643564] wlan0: authenticated
[55969.643873] wlan0: associate with 7c:d1:c3:cd:b9:be (try 1/3)
[55969.647304] wlan0: RX AssocResp from 7c:d1:c3:cd:b9:be (capab=0x431
status=0 aid=1)
[55969.654396] wlan0: associated
[55969.657270] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready

Thank you,

Chris

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