I have got the following problem. I am trying to connect my Ubuntu machine to a wireless network (WPA2 Personal). I am sure that I am providing the correct key, however I am not able to connect to the network. On the other hand there is completely no problem connecting to this network from a Windows machine nor from a mobile device (Android).
Also there is no problem connecting to a WPA2 network provided by a router set up on a smart phone, so this does not look like a hardware issue of an old machine.
Has anybody stumbled upon a similar problem?
UPDATE: After a very interesting discussion with gertvdijk it turned out that this is highly probable that the problem here is that the network I am connecting to. It uses CCMP
and not TKIP
. I am not able to change this, so I am looking for another solution. The wireless card seems to have CIPHER-CCMP
on its list.
EDIT: The output of lspci -nn | grep 0280
is:
02:02.0 Network controller [0280]: Intel Corporation PRO/Wireless LAN 2100 3B Mini PCI Adapter [8086:1034] (rev 04)
EDIT: The results of sudo iwlist eth1 auth
are as follows
Authentication capabilities :
WPA
WPA2
CIPHER-TKIP
CIPHER-CCMP
Current WPA version :
Unknown
Current key management
Unknown
Current Pairwise cipher
WEP-104
Unknown
Current TKIP countermeasures: yes
Current Drop unencrypted: yes
Current Authentication algorithm :
Current Receive unencrypted EAPOL: no
Current Roaming control: yes
Current Privacy invoked: yes
EDIT: The results of executing cat /var/log/syslog | grep etwork | tail -n20
are posted here
EDIT: After executing dmesg
there is a message that "worries" me.
[260.506187] ipw2100: Can't get TKIP countermeasures: crypt not set!
EDIT: The outcome of sudo iwlist eth1 scan
is here. The network I am trying to connect to is named TheWirelessIAmTryingToConnectTo
. All the other network names have been changed by me.
sudo iwconfig eth1 power off
,sudo iwconfig eth1 power on
,sudo service network-manager restart
and try to connect again. Reported as a work around here.FRITZ!Box
which is a German internet provider. I can connect to this network flawlessly from a Windows machine. Is it possible to cut off a specific operating system on some routers? Are those pieces of information even sent while connecting to a wireless network?backports
package for the kernel, it is for 2.6.32 though. Is there something similar for 3.2.0?linux-backports-modules-cw-3.6-precise-generic
(or-pae
if you're running PAE). These are wireless kernel modules from the 3.6 kernel backported to the regular Precise kernel. However, the discussion in German is a long time ago and these patches should already be in since 10.10.dmesg
as recommended in this discussion. I posted the message that worries me as an update to the question.