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I recently installed Linux Mint 13 alongside windows 7. I have a Realtek RTL8191SEvB Wireless Card. This work's fine with any router. However when I try to connect to a Belkin G Wireless Router it constantly says the passwords or encryption type are incorrect. They are not. I can connect to the Belkin router when I start my laptop (a toshiba satelite) with windows. Any ideas?

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Check if there is any difference between cryptography algorithms used by the different routers (e.g. WEP, WPA-TKIP, WPA2-TKIP, WPA2-AES). – andcoz Apr 25 '13 at 11:33
Its WPA 2. Every other computer in the house can connect to it using that setting... – user1716672 Apr 25 '13 at 11:40

When you say you installed it alongside windows do you mean that you are dual booting windows and mint? Or are you running a virtual instance within windows?

Either way try this from the command line:

ifconfig wlan0 up && iwlist wlan0 scan | egrep -i "ssid|cipher"

If you get some kind of error check to see if you even have a wlan0 config file in your network-scripts folder. You can omit the pipe to egrep if you want a bunch of irrelevant info. Then do:

 iwconfig wlan0 essid "your network name goes here" key s:"your wireless password"
 dhclient wlan0
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I tried the first command and I got: – user1716672 May 2 '13 at 10:20
I tried the first command and I got: ESSID: "my network name" Group Cipher : TKIP Pairwise Cipher (1) : CCMP Group Cipher : TKIP Pairwise Ciphers (2) : TKIP CCMP. I think iwconfig does not support WPA only WEP.... – user1716672 May 2 '13 at 10:27

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