Cfrtjryk

I have a Lenovo Thinkpad X220. I recently changed my hard disk drive to an SSD and installed Arch Linux on it.

What happens is that, when I try to connect to a Wifi Network via wifi-menu, it doesn't connect. wifi-menu shows me the different networks that are available to connect, and when typing the password it immediately fails.

Not sure what drivers I should install, and the only way I can connect to the Internet is through a wired connection.

I think this can be useful:

> $ lspci -nnk | grep -iA2 net



00:19.0 Ethernet controller [0200]: Intel Corporation 82579LM Gigabit 

Network Connection (Lewisville) [8086:1502] (rev 04)

Subsystem: Lenovo ThinkPad T520 [17aa:21ce]

Kernel driver in use: e1000e

--

03:00.0 Network controller [0280]: Intel Corporation Centrino 

Advanced-N 6205 [Taylor Peak] [8086:0085] (rev 34)

Subsystem: Intel Corporation Centrino Advanced-N 6205 (802.11a/b/g/n) 

[8086:1311]

Kernel driver in use: iwlwifi

So this is the output for when trying to connect manually using wpa_supplicant

> $ sudo wpa_supplicant -c /etc/wpa_supplicant.conf -i wlp3s0  

Successfully initialized wpa_supplicant

wlp3s0: SME: Trying to authenticate with 82:2a:a8:31:9c:51 (SSID='CATEGORIES' freq=2437 MHz)

wlp3s0: Trying to associate with 82:2a:a8:31:9c:51 (SSID='CATEGORIES' freq=2437 MHz)

wlp3s0: Associated with 82:2a:a8:31:9c:51

wlp3s0: CTRL-EVENT-SUBNET-STATUS-UPDATE status=0

wlp3s0: CTRL-EVENT-DISCONNECTED bssid=82:2a:a8:31:9c:51 reason=3 locally_generated=1

wlp3s0: SME: Trying to authenticate with 82:2a:a8:31:9c:36 (SSID='CATEGORIES' freq=2412 MHz)

wlp3s0: SME: Trying to authenticate with 82:2a:a8:31:9c:51 (SSID='CATEGORIES' freq=2437 MHz)

wlp3s0: Trying to associate with 82:2a:a8:31:9c:51 (SSID='CATEGORIES' freq=2437 MHz)

wlp3s0: Associated with 82:2a:a8:31:9c:51

wlp3s0: CTRL-EVENT-SUBNET-STATUS-UPDATE status=0

wlp3s0: WPA: Failed to set PTK to the driver (alg=3 keylen=16 bssid=82:2a:a8:31:9c:51)

wlp3s0: CTRL-EVENT-DISCONNECTED bssid=82:2a:a8:31:9c:51 reason=1 locally_generated=1

wlp3s0: WPA: 4-Way Handshake failed - pre-shared key may be incorrect

wlp3s0: CTRL-EVENT-SSID-TEMP-DISABLED id=0 ssid="CATEGORIES" auth_failures=1 duration=10 reason=CONN_FAILED

^Cnl80211: deinit ifname=wlp3s0 disabled_11b_rates=0

wlp3s0: CTRL-EVENT-TERMINATING 

Try to check the state of your wifi interface with ip link. If it is down, you can bring it up with sudo ip link set dev [your interface name] up.

As jasonwryan stated, connecting manually (you can use wpa_supplicant) might give you more information on the problem.

In the begginig I have the same Problem with wifi-menu, then I mannualy connect with the internet like this:

1) Discover what is your interface with the follow command: iwconfig

Normally, your wifi interface is like this construct: wlp2s0

I'll put where you need to put your interface

2) Put the interface up: ip link set <interface name> up

3) Scan your interface to see if he is enable: iwlist <interface name> scan | less

4) If he is in the list, down the interface: ip link set interface down

5) Go the netctl examples Directory: cd /etc/netctl/examples

6) Copy the wireless-wpa to netctl Directory with the name you want:

cd /etc/netctl/examples/wireless-wpa /etc/netctl/wifi_name

7) Open the wireless-wpa file to edit with nano(you can use VIM):

sudo nano /etc/netctl/wifi_name

8) Alterate the following infos:

Interface: <Interface name>

ESSID: <your internet name>

key: <your internet password>

Save with CTRL+O and CTRL+X

9) Run the netctl with the following commands:

cd /etc/netctl

netctl start wifi_name

10) If appearing a error message, try this commad: ip link set dev <interface name> down

11) try run your internet: ping -c 3 www.google.com

12) If working, enable your internet to run all the time: netctl enable wifi_name

Try installing the NetworkManager package using chroot in the install media and use nmtui.