Snow Leopard and WPA2

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I have just moved an iMac (running Snow Leopard with all the latest
updates).

The new location has a Netgear DGN2000N. The wireless network is WPA2
Personal secured.

I have a Macbook running Leopard. My Macbook can associate with the
Netgear / get an address and connect
My iMac running Snow Leopard cannot connect.

The only wireless connection I can get to the iMac is if I remove all
encryption from the wireless network and leave it in the clear.

What did Apple break with WPA2 in Snow Leopard and how do I fix it ?
 
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If the issue was with the Netgear why would I be getting connectivity from my Leopard / Macbook Pro ?
 
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There isn't any problem with that. My 3 macs work fine with my WPA2 enabled. Try changing the networks name ad password.
 
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Errr....if I do that then I need to change same in every device connected....which I can do (there are only 3 others) but WHY would that fix the issue ?
 
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Only try it to see if it's that. If not you can just revert to the same SSID and pw without a problem.

Otherwise go to Network PreferEnces, Advance, and delete the network from the list. Allow ur mac to discover the network again.
 
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My Netgear allows me to add a second SSID which I did. Again my (Leopard) Macbook can connect to it with no issue but my (Snow Leopard) iMac cannot.

Have tried deleting it and rediscovering it with no luck
 
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NVM it isn't faulty, since you said without security you can connect.
 
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Did you try Internet Sharing, if so what were the results?
 
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Yes DHCP is set
No I did not try Internet Sharing

I have just discovered that the Snow Leopard Machine can connect to WPA but not WPA2. I have 2 SSIDs from the Netgear.....one set with WPA2 (which can only assign an IP to my Leopard / Macbook) and one set to WPA (which can assign IP to both Snow Leopard iMac and Leopard Macbook)
 
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Ok go in here and drag the networks so preferred one is at the top - see if that helps;


Click for full size

Hope u have different names/passwords for the SSIDs
 
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WPA-2 SSID (filet) is at the top. See attached

I tried a couple of other things:

1. http://osxdaily.com/2007/01/18/airpo...eless-utility/

With this I collected the following outputs from Terminal:

bash-3.2$ airport -I
agrCtlRSSI: -44
agrExtRSSI: 0
agrCtlNoise: -94
agrExtNoise: 0
state: running
op mode: station
lastTxRate: 54
maxRate: 54
lastAssocStatus: 0
802.11 auth: open
link auth: wpa-psk
BSSID: 62:22:3f:55:cd:49
SSID: wii_net
MCS: -1
channel: 1

bash-3.2$ airport -I
agrCtlRSSI: -41
agrExtRSSI: 0
agrCtlNoise: -95
agrExtNoise: 0
state: running
op mode: station
lastTxRate: 54
maxRate: 54
lastAssocStatus: 0
802.11 auth: open
link auth: wpa2-psk
BSSID: 0:22:3f:55:cd:48
SSID: filet
MCS: -1
channel: 1

filet is the wpa-2 network that my Netgear offers and that my Snow Leopard iMac cannot get connected through
wii_net is the wpa network that my Netgear offers and my Snow Leopard iMac can get connected through

2. http://www.mac-forums.com/forums/ai...85934-wireless-connectivity-snow-leopard.html

This made no difference

Screen shot 2010-01-13 at 13 January 21.43.23.png
 
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Seems you are running both networks on channel 1 - what about putting one of them on a different channel in the Netgear.
 
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Well yes I can do that BUT I have 3 machines that can connect to the WPA-2 network right now: Apple TV, Wii and Macbook Pro (running Leopard) and only the iMac that cannot but the iMac can connect to the WPA network....and if I try to attach to the WPA network with the other 3 machines then they can connect....so I don't really see what changing the channel on the Netgear will achieve ?
 

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