Troubleshooting Wireless Drivers

[van_rea]

Hi all, I install Kali 1.0.3 and i still not have wlan0. My network adapter is : 03:00.0 Network controller: Broadcom Corporation BCM43227 802.11b/g/n
Before that i have Backtrack 5 R3 and i have WiFi without any problems with bcmwl-kernel-source_5.100.82.38+bdcom-0ubuntu6_amd64 package. Can you give some how to or package to fix this

[muasef]

OK, I'm done with my patience i had to register and ask for help.
My hardware: Alfa awus036nh with ralink rt3070 chip and integrated ralink 3090.
My problem: i cant access the internet ... it is really strange. I have listed all available wifi networks of the USB adapter, but if i try to connect it wont.
The history: 1. I installed kali 1.0.2 amd64 and everything worked great ... after i perform "apt-get upgrade" the network manager showed that I'm connected, but couldn't access the internet nor my router over the IP 192.168.1.1.
2. After i got stuck on the 1.0.2 (after "apt-get upgrade") i tried 1.0.3 amd64, and now I'm not able to connect to the wireless at all.

I tried to put wlan0 (my integrated wireless card) down ("ifconfig wlan0 down"), but had no luck ... tried to put eth0 and lo down, but nothing ... i tried everything that i found googling, but there's not much information for Kali out there ATM.

[Alexcreator]

Is anybody found a solution for this problem? Only I can connect to wifi but no internet...

[Nick_the_Greek]

Is anybody found a solution for this problem? Only I can connect to wifi but no internet...

Hi Alexcreator.
You can try:

1)Try to set CRDA:

iw reg set <your country code>

e.g

iw reg set US

it's very weird that dmesg shows you only 5GHz and 60 GHz band frequencies:

[ 25.830192] cfg80211: (5170000 KHz - 5250000 KHz @ 80000 KHz), (N/A, 2000 mBm)
[ 25.830194] cfg80211: (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 2000 mBm)
[ 25.830196] cfg80211: (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 0 mBm)

if you are unsure try to use world regulatory domain. Kali sets by default the world regulatory domain:

iw reg set 00

dmesg should look like this:

[ 2275.325369] cfg80211: Calling CRDA to update world regulatory domain
[ 2275.327933] cfg80211: Calling CRDA to update world regulatory domain
[ 2275.330695] cfg80211: World regulatory domain updated:
[ 2275.330697] cfg80211:  DFS Master region: unset
[ 2275.330698] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[ 2275.330700] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 2000 mBm)
[ 2275.330701] cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm)
[ 2275.330702] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (N/A, 2000 mBm)
[ 2275.330704] cfg80211:   (5170000 KHz - 5250000 KHz @ 80000 KHz), (N/A, 2000 mBm)
[ 2275.330705] cfg80211:   (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 2000 mBm)
[ 2275.330706] cfg80211:   (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 0 mBm)

See?

2) Look at /etc/network/interfaces file. If there are other then those ones:

auto lo
iface lo inet loopback

delete them and restart networking and networkmanager.

service network-manager stop
service networking stop
service networking start
service network-manager start

3) Try to give a static IP,. Network-manager->Edit connections.
4) See if you can ping a site. Maybe it's a DNS resolving problem.
If you can't ping any site look at /etc/resolv.conf file and add a DNS server: e.g. OPEN DNS servers:

nameserver 208.67.222.222
nameserver 208.67.220.220

you can add this also if you set a statip IP to your connection. step 3 above.
5) Unload and load your wireless NICs driver

modprobe -r <your driver>
modprobe <your driver>

6) See your iptables.
7) Try to use a different wireless NIC.
8) Have patience

That's all for now. Good luck!