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Summary:

Since I installed Leopard, I’ve been noticing some strange behavior with my wireless networks. When my Macbook Pro wakes from sleep, I get a window warning that none of my preferred wireless networks can be found, and offering me a choice of the various ones it […]

Since I installed Leopard, I’ve been noticing some strange behavior with my wireless networks. When my Macbook Pro wakes from sleep, I get a window warning that none of my preferred wireless networks can be found, and offering me a choice of the various ones it can see.

wireless.png

One of these, oddly, is my house network. I have a WPA2 encrypted network, so I enter the key, check ‘remember this network’ and click join. So far so good – except that this happens every time my laptop wakes up. (This all wouldn’t be nearly so annoying if my WPA key weren’t twenty or so mostly-random characters long, but I digress.) I have rebuilt and repaired my keychain, deleted and recreated the key for my wireless network, and deleted all the associated preference files, all to no avail. Every time it wakes up, there’s the window again.

Frustrated, the other day I chose ‘cancel’ instead. The window vanished and, on a lark, I tried connecting to my network from the normal airport menu. Surprisingly, that worked without a blink.  Evidently, the key is being remembered somewhere, it just hasn’t reached whatever process is responsible for this little box.

The support.apple.com forums lead me to believe that I am not alone in this strange forgetfulness; that’s where I got the above fixes, in fact. While this little workaround doesn’t fix anything permanently, others may find it useful.  And who knows – perhaps 10.5.1, supposedly rolling later this week, will fix this.

  1. I’ve run into the same problem. I’ve developed two solutions. Either close the lid, and re-open, or turn airport off and then back on. Either of these “solutions’ will work. Suddenly… there is my network.

    FYI: MBP 2.0ghz, WEP non-broadcast SDID network.

    This, along with the mirrored display issue in Front-Row, had better get fixed in .1 I’ve heard that the FR bug did get fixed (its actually a QT bug)…we’ll seee.

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  2. Have you repaired permissions?

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  3. @hotspur. To my knowledge this particular bug is not permissions related, but instead is related to the way the wireless software handles connections when waking from sleep.

    It seems to disregard the last network it was connected to, instead of trying to re-connect to it.

    What I haven’t tested is whether this is also the case if the network is unsecured…though I suspect it might.

    I’m hoping that the bug-fix will work when the ssid isnt broadcast.

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  4. Strangely enough, I had this exact same problem with my WPA network at work on Tiger, and the problem magically went away when I upgraded to Leopard. I know that’s not a lot of help, but it seems to indicate some deeper architectural issue to me.

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  5. @ Dan

    Bizarre!

    I was having hella trouble on UPenn’s wireless network on Tuesday…it would connect, but the second it authenticated, it would drop the network….

    Maybe they just want us to buy Airport base stations… :)

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  6. I am using an Airport Extreme and I am currently having this issue with my MBP.

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  7. Nice to see somebody writing about UPenn :-). The 802.1X authentication that Penn uses worked ok in Tiger, but now if you select the network from that box that opens up, it’ll create a new entry for the AirPennNet SSID saying that it uses WEP. It then becomes impossible to join that network, since the latest entry is trying WEP and not 802.1X, the fix is to just click cancel on that box and select the network from the menubar. That way, it’ll use 802.1X like it’s supposed to.

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  8. odd. I had this problem after getting one of the 10.4 updates. Since going 10.5 the problem has been fixed for me.

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  9. @ Scott

    Thanks for the heads up. This isnt McN is it?

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  10. @ DJCarbon43

    McN? I’m Scott, a senior in Engineering. Are you a student also?

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