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#1 2012-08-30 10:40:19

el mariachi
Member
Registered: 2007-11-30
Posts: 588

Wireless keeps dropping, works with Ubuntu

So I came to Germany and my friend's computer with Ubuntu works flawlessly with his wpa network (also his newer Win7 laptop.. the one with ubuntu is ~6 years old)

I never had any issues with netcfg back home and WPA2/WPA/WEP networks worked out-of-the-box with wifi-menu or wifi-select.

I tried doing it manually, by configuring wpa_supplicant.conf:

ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=network
update_config=1
network={
	ssid="heerde.net"
    proto=WPA
    key_mgmt=WPA-PSK
	#psk="1414213562373"
	psk=74deaa6f0a305db71824422e686410406d803cc19b20dd6b5627d9b6847c9e92
}

and then running wpa_supplicant:

wlan0: Trying to associate with 00:13:49:d7:4c:0d (SSID='heerde.net' freq=2462 MHz)
wlan0: Authentication with 00:13:49:d7:4c:0d timed out.
wlan0: Trying to associate with 00:13:49:d7:4c:0d (SSID='heerde.net' freq=2462 MHz)
wlan0: Associated with 00:13:49:d7:4c:0d
wlan0: WPA: 4-Way Handshake failed - pre-shared key may be incorrect
wlan0: CTRL-EVENT-DISCONNECTED bssid=00:13:49:d7:4c:0d reason=0
wlan0: Trying to associate with 00:13:49:d7:4c:0d (SSID='heerde.net' freq=2462 MHz)
wlan0: Associated with 00:13:49:d7:4c:0d
wlan0: WPA: Could not verify EAPOL-Key MIC - dropping packet
wlan0: CTRL-EVENT-DISCONNECTED bssid=00:13:49:d7:4c:0d reason=0
wlan0: Trying to associate with 00:13:49:d7:4c:0d (SSID='heerde.net' freq=2462 MHz)
wlan0: Associated with 00:13:49:d7:4c:0d
wlan0: WPA: Could not verify EAPOL-Key MIC - dropping packet
wlan0: CTRL-EVENT-DISCONNECTED bssid=00:13:49:d7:4c:0d reason=0
wlan0: Trying to associate with 00:13:49:d7:4c:0d (SSID='heerde.net' freq=2462 MHz)
wlan0: Associated with 00:13:49:d7:4c:0d
wlan0: WPA: Key negotiation completed with 00:13:49:d7:4c:0d [PTK=TKIP GTK=TKIP]
wlan0: CTRL-EVENT-CONNECTED - Connection to 00:13:49:d7:4c:0d completed (auth) [id=0 id_str=]

as you can see the connection drops a lot, but the key is correct (I'm using it now while it doesn't drop again).

dhcpcd:

dhcpcd[1947]: version 5.6.0 starting
dhcpcd[1947]: wlan0: waiting for carrier
dhcpcd[1947]: wlan0: carrier acquired
dhcpcd[1947]: wlan0: rebinding lease of 192.168.1.46
dhcpcd[1947]: wlan0: acknowledged 192.168.1.46 from 192.168.1.1 `P660HW-T7C'
dhcpcd[1947]: wlan0: checking for 192.168.1.46
dhcpcd[1947]: wlan0: carrier lost

My laptop is a DELL E500 with a 5300 intel card. Again, everything works flawlessly back home (Portugal), in my Uni, in my house, everywhere.
The connection also drops on my Android phone (samsung Gio).

Can this be a channel/frequency issue? What do you think?

Thanks!

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#2 2012-08-30 10:49:56

Šaran
Member
From: Bosnia
Registered: 2011-09-03
Posts: 407

Re: Wireless keeps dropping, works with Ubuntu

This sounds like a router problem. Have you checked router's configuration for anything unusual?

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#3 2012-08-30 12:36:35

el mariachi
Member
Registered: 2007-11-30
Posts: 588

Re: Wireless keeps dropping, works with Ubuntu

My friend checked it and says everything is like it's supposed to. And since every computer works fine here except for mine it seems that way hmm

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#4 2013-01-10 17:17:23

renegat
Member
From: Europe
Registered: 2012-12-28
Posts: 73

Re: Wireless keeps dropping, works with Ubuntu

You're not alone!
Experienced the same problem on Atheros AR2427:

Solved it by disabeling the WiFis Power Management:

iwconfig wlan0 power off

to make it persistant create:

# /etc/udev/rules.d/wlan0_power_save.rules
ACTION=="add", SUBSYSTEM=="net", KERNEL=="wlan0" RUN+="/usr/sbin/iwconfig wlan0 power off"

When faced to untenable alternatives you should consider your imperative. [Adm. Helena Caine, BSG62 'Pegasus']

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