My Intel 6205 wireless network card does not work after hibernating. It sometimes also does not work on boot, failing in the same way. Occasionally, it also stops working after ~10 minutes of continuous use.
I have experimented with combinations of: modprobe -r iwlwifi
before and after hibernating (or when the problem otherwise occurs), followed by modprobe iwlwifi
; and then systemctl restart network-manager
and systemctl restart NetworkManager
. These solutions are what all search results for the symptoms focuses on.
What else should I try?
Configuration:
- Debian Jessie
- kernel 3.14.4-1
- networkmanager 0.9.8.10
- Intel 6205 rev 96 (iwlwifi)
- Lenovo ThinkPad X1 Carbon
$ dmesg wlan0: authenticate with 47:f2:2f:91:db:7b wlan0: Wrong control channel: center-freq: 5500 ht-cfreq: 5180 ht->primary_chan: 36 band: 1 - Disabling HT wlan0: direct probe to 47:f2:2f:91:db:7b (try 1/3) wlan0: direct probe to 47:f2:2f:91:db:7b (try 2/3) wlan0: direct probe to 47:f2:2f:91:db:7b (try 3/3) wlan0: authentication with 47:f2:2f:91:db:7b timed out wlan0: authenticate with 47:f2:2f:91:db:7b wlan0: send auth to 47:f2:2f:91:db:7b (try 1/3) wlan0: send auth to 47:f2:2f:91:db:7b (try 2/3) wlan0: send auth to 47:f2:2f:91:db:7b (try 3/3) wlan0: authentication with 47:f2:2f:91:db:7b timed out # the last 5 messages repeat indefinitely as connection is reattempted
Best Answer
Take a look at the output from this command to confirm what drivers/modules the kernel is using for your given hardware.
The names of the driver is listed in the `configuration line:
Check and see what other drivers may be in use by this higher level driver:
Try unloading all these
rmmod <name>
and then reloading them:That should load the top level driver + any lower level ones automatically.
Disabling wireless-N
I've had many issues with most of my Thinkpad laptops where wireless would act flaky. The only solution I've found that works is to disable the Wireless-N feature of the
iwlwifi
module. You can find out the name/options of this parameter to the module like so:So after removing the module when you're ready to reload it via
modprobe
include the option11n_disable
. For example:You can make this permanent through your
modprobe.d
directory from boot to boot.