Cannot connect to router wirelessly using USB wifi adapter after upgrading to wheezy

zjmarlow · 05-27-2014, 12:17 PM

After upgrading to wheezy, I am no longer able to connect either of my two wireless routers using the D-Link DWA-131 802.11n Wireless N Nano Adapter(rev.A1). One router is visible and one is not. To keep things simple, I'd like to start out trying to connect to the visible router.

Code:

# uname -a
Linux debian 3.2.0-4-686-pae #1 SMP Debian 3.2.57-3+deb7u1 i686 GNUL/Linux

# lsusb
...
... D-Link System DWA-131 802.11n Wireless N Nano Adapter(rev.A1) [Realtek RTL8192SU]
...

# lsmod
...
r8712u...
...

# cat /etc/network/interfaces
...
auto wlan0
iface wlan0 inet static
  pre-up wpa_supplicant -B -Dwext -i wlan0 -c /etc/wpa_supplicant.conf
  wireless-essid MY_ESSID
  address 192.168.254.204
  netmask 255.255.255.0
  gateway 192.168.254.254
  default gateway 192.168.254.254
  dns-nameservers 8.8.8.8 24.205.192.61 192.168.254.254
  post-down killall -q wpa_supplicant

# cat wpa_supplicant.conf
network={
	ssid="MY_ESSID"
	psk=LONG_HEX_STRING
	key_mgmt=WPA_PSK
}

The contents of dmesg and kern.log are mostly

Code:

...wlan0: direct probe to... timed out

Please let me know if I need to provide any additional information.

schneidz · 05-27-2014, 12:29 PM

does this yield anything positive:

Code:

ifconfig
ifconfig -a
sudo ifconfig wlan0 down
sudo ifconfig wlan0 up
iwconfig
sudo iwlist wlan0 scan
sudo iwconfig wlan0 essid my_essid

zjmarlow · 05-27-2014, 01:32 PM

Code:

# ifconfig
...
wlan0	Link  encap:Ethernet  HWaddr HWADDR
	inet addr:192.168.254.204  Bcast:192.168.254.255  Mask:255.255.255.0
	UP BROADCAST MULTICAST  MTU:1500 Metric:1
	RX packets:4 errors:0 dropped:0 overruns:0 frame:0
	TX packets:39 errors:0 dropped:0 overruns:0 carrier:0
	collisions:0 txqueuelen:1000
	RX bytes:452 (452.0 B)  TX bytes:6980 (6.8KiB)
	

# ifconfig -a
(output matches `ifconfig`)

# sudo ifconfig wlan0 down
(no output)

# sudo ifconfig wlan0 up
(no output)

# iwconfig
...
wlan0	IEEE 802.11bg  ESSID:"MY_ESSID"
	Mode:Managed  Frequency:2.412 GHz  Access Point: Not-Associated
	Tx-Power=27dBm
	Retry  long limit:7  RTS thr:off  Fragment thr:off
	Encryption key:off
	Power Management:off
...

# sudo iwlist wlan0 scan
wlan0	Scan completed :
	Cell 01 - Address: ADDR
		Channel:1
		Frequency:2.412 GHz (Channel 1)
		Quality=8/70  Signal level=-102dBm
		Encryption key:on
		ESSID:"MY_ESSID"
		Bit Rates:(1 through 18 Mb/s)
		Bit Rates:(24 through 54 Mb/s)
		Mode:Master
		...
		IE: IEEE 802.11i/WPA2 Version 1
		    Group Cipher : CCMP
		    Pairwise Ciphers (1) : CCMP
		    Authentication Suites (1) : PSK
		...

# sudo iwconfig wlan0 essid my_essid
(no output)

schneidz · 05-27-2014, 01:42 PM

it seems like you are connected. what does this give you:

Code:

cat /etc/resolv.conf
ping -c 5 192.168.254.254 && ping -c 5 64.235.229.141 && ping -c 5 www.02144.com

zjmarlow · 05-27-2014, 01:53 PM

Code:

# cat /etc/resolv.conf
# Generated by NetworkManager
nameserver 192.168.1.1
nameserver 24.205.192.61
nameserver 8.8.8.8
(note that 192.168.1.1 is not the gateway.  I corrected it to 192.168.254.254 now)

# ping -c 5 192.168.254.254 && ping -c 5 64.235.229.141 && ping -c 5 www.02144.com

PING 192.168.254.254...
(Destination Host Unreachable for icmp_seq 1-5)

schneidz · 05-27-2014, 01:56 PM

not sure what ip your router is but lets try this:

Code:

ping -c 5 192.168.1.1; ping -c 5 64.235.229.141; ping -c 5 www.02144.com

zjmarlow · 05-27-2014, 03:52 PM

Code:

connect: Network is unreachable

Please note that I still get the Destination Host Unreachable when pinging 192.168.254.254...

schneidz · 05-27-2014, 07:41 PM

I'm stumped. do you have any other devices connected to that router. what do they have configured as their gateway ?

michaelk · 05-27-2014, 09:09 PM

Quote:

wlan0 IEEE 802.11bg ESSID:"MY_ESSID"
Mode:Managed Frequency:2.412 GHz Access Point: Not-Associated
Tx-Power=27dBm
Retry long limit:7 RTS thr

ff Fragment thr

ff
Encryption key

ff
Power Management

ff

Your not connected to the router.

It appears that you have network manager installed. Is it running? Have you tried configuring the network via network-manager? Any reason why you want to use a static IP address? It is also interesting that iwconfig output shows encryption off whereas iwlist indicates it is on.

https://wiki.debian.org/WiFi/HowToUse