Intel PRO Wireless 3945ABG problem

[EnesTesla]

Hello !
Since i have installed Ubuntu, i cant use Wifi in my home, so i use Cable (LAN), at this moment
Well, I can connect on network but Internet doesnt work, or sometimes working about 1-2 mins and stop !
I tried much things but nothing helps !
LAPTOP MODEL IS : HP nc6400
Maybe the problem is x64 Ubuntu

[chili555]

I assume the driver is iwl3945; confirm:

lsmod | grep iwl

If so, please try:

sudo modprobe -r iwl3945
sudo modprobe iwl3945 swcrypto=0

Now will it stay connected? If it helps, we'll write one quick file and make it persistent.

[EnesTesla]

enes@anon-PC:~$ lsmod | grep iwl
iwl3945 65160 0
iwlegacy 104518 1 iwl3945
mac80211 540032 2 iwl3945,iwlegacy
cfg80211 206797 3 iwl3945,iwlegacy,mac80211
enes@anon-PC:~$ sudo modprobe -r iwl3945
[sudo] password for enes:
WARNING: All config files need .conf: /etc/modprobe.d/ipwraw, it will be ignored in a future release.
WARNING: All config files need .conf: /etc/modprobe.d/iwl3945, it will be ignored in a future release.
WARNING: All config files need .conf: /etc/modprobe.d/iwlwifi.conf,, it will be ignored in a future release.
enes@anon-PC:~$ sudo modprobe iwl3945 swcrypto=0
WARNING: All config files need .conf: /etc/modprobe.d/ipwraw, it will be ignored in a future release.
WARNING: All config files need .conf: /etc/modprobe.d/iwl3945, it will be ignored in a future release.
WARNING: All config files need .conf: /etc/modprobe.d/iwlwifi.conf,, it will be ignored in a future release.

New in Ubuntu, sorry if I do something wrong

Well, same **** again !

[chili555]

Let's do some housecleaning. I think it's likely that you have some conflicts going.

sudo rm /etc/modprobe.d/ipwraw 
sudo rm /etc/modprobe.d/iwl3945
sudo rm  /etc/modprobe.d/iwlwifi.conf
gksudo gedit /etc/modprobe.d/iwl3945.conf

Add a single line:

options iwl3945 swcrypto=0

Proofread, save and close gedit. Reboot and give us your report. Make sure any ethernet cables and/or USB wireless devices are detached.

After the reboot, does your wireless work better, worse or the same?

[EnesTesla]

Just follow what chili is saying, good job my friend and thanks for help ! [Solved] !

lsmod | grep iwl

sudo modprobe -r iwl3945
sudo modprobe iwl3945 swcrypto=0

(IF you get this WARNINGS like me) --->
sudo rm /etc/modprobe.d/ipwraw
sudo rm /etc/modprobe.d/iwl3945
sudo rm /etc/modprobe.d/iwlwifi.conf

gksudo gedit /etc/modprobe.d/iwl3945.conf

alias wlan0 iwl3945
options iwl3945 disable_hw_scan=0 (Thats my iwl3945.conf file)

or options iwl3945 swcrypto=0

[chili555]

Glad it's working! Post back if we can help you in the future.