Cannot connect to WEP encrypted wireless

parazyd · 2012-10-14 06:59:44

Hello. I'm trying to install Arch (2012.09.07) to my PC. There isn't a way to connect via cable for me so I have to do it wireless.
I have an USB wireless adapter with rtl8187 firmware. It works great in Ubuntu and Windows 7 (connects with no problems).
The thing is, my home Internet connection is WEP encrypted and I can't change that.

When installing, I do:

modprobe rtl8187
dmesg | grep rtl8187
ifconfig wlan0 up
wifi-menu wlan0

And I find my network in wifi-menu. I try to connect and I type in the passphrase. The passphrase is 100% correct.
Then it says: "wlan0-myessid up"
and then: WPA Authentication Failed.

^^ Why does it say WPA when I have a WEP encrypted network and why cannot I connect to my network?
Thanks.

olive · 2012-10-14 09:42:14

Are you sure you have WEP encryption? What's the output of

iwlist scan

If it is WEP, I would use iwconfig (I don't know wifi-menu):

iwconfig wlan0 essid <your-essid> key s:<your key>

If it is WPA, try to configure wpa_supplicant directly.

Last edited by olive (2012-10-14 09:42:34)

parazyd · 2012-10-14 10:39:57

It's wep. I tried with iwconfig too... Doesn't work.

Here's iwlist scan:

          Cell 05 - Address: 00:21:63:51:87:6A
                    Channel:1
                    Frequency:2.412 GHz (Channel 1)
                    Quality=42/70  Signal level=-68 dBm  
                    Encryption key:on
                    ESSID:"myessid"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s
                    Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s
                              36 Mb/s; 48 Mb/s; 54 Mb/s
                    Mode:Master
                    Extra:tsf=00000004e9bf3a3a
                    Extra: Last beacon: 2720ms ago
                    IE: Unknown: 000570696E6B61
                    IE: Unknown: 010482848B96
                    IE: Unknown: 030101
                    IE: Unknown: 2A0104
                    IE: Unknown: 32080C1218243048606C

With iwconfig, I did:

modprobe rtl8187
ifconfig wlan0 up
iwlist wlan0 scan |less
iwconfig wlan0 essid "myessid" key s:myencryptionkey
dhcpcd wlan0

Last edited by parazyd (2012-10-14 10:41:20)

parazyd · 2012-11-02 15:45:46

I'm still having trouble with this... Any answers?

It's an ALFA AWUS036H adapter.

Last edited by parazyd (2012-11-02 15:46:43)

Arch Linux

#1 2012-10-14 06:59:44

Cannot connect to WEP encrypted wireless

#2 2012-10-14 09:42:14

Re: Cannot connect to WEP encrypted wireless

#3 2012-10-14 10:39:57

Re: Cannot connect to WEP encrypted wireless

#4 2012-11-02 15:45:46

Re: Cannot connect to WEP encrypted wireless

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