Connect to Wireless Network, no internet connection

[redness1234]

Hi, I recently installed Backtrack 5 R3 on my Toshiba NB255 laptop.

I can connect to my wireless network with wicd, but theres no internet access. Ping fails to connect and firefox can't connect to any servers either. After doing iwconfig and ifconfig, I can't see anything out of the ordinary, no dropped or erroneous packets according to ifconfig.

When I connect through ethernet to my router, wicd stalls at the ip assignment step.

I've tried starting networking through

start networking

and

/etc/init.d/networking start

, but I can't get it to work.

I'm getting good signal, so that isn't it.

Again, I successfully connect to the network, just no internet. Any ideas?

[redness1234]

Also possibly worth noting, when I run a LAN device discovery tool, such as netdiscover, I am only able to find the router itself (192.168.0.1).

Any help would be appreciated!

[maverik35]

Would you please post the ifconfig and iwconfig output?Are you using HDD install, VM, USB?..The wifi device chipset and type of authentication used (wpa-wpa2, wep, open)?

Luck.

[redness1234]

I have a HDD install, alongside Ubuntu and Windows.

I'm in a WEP encrypted network, and I have the encryption settings correctly configured

Iwconfig

wlan0     IEEE 802.11bgn  ESSID:[[key]]  
          Mode:Managed  Frequency:2.412 GHz  Access Point: [[Mac]]   
          Bit Rate=54 Mb/s   Tx-Power=15 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Encryption key:[[key]]
          Power Management:on
          Link Quality=51/70  Signal level=-59 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:8   Missed beacon:0

Ifconfig

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:22 errors:0 dropped:0 overruns:0 frame:0
          TX packets:22 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:1553 (1.5 KB)  TX bytes:1553 (1.5 KB)

wlan0     Link encap:Ethernet  HWaddr [[mac]]  
          inet addr:192.168.0.104  Bcast:192.168.0.255  Mask:255.255.255.0
          inet6 addr: [[address]] Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:268 errors:0 dropped:0 overruns:0 frame:0
          TX packets:8 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:49888 (49.8 KB)  TX bytes:1312 (1.3 KB)

I'm not sure what lo could be to be honest, so I posted it anyway!

[maverik35]

I have a HDD install, alongside Ubuntu and Windows.

I'm in a WEP encrypted network, and I have the encryption settings correctly configured

Iwconfig

wlan0     IEEE 802.11bgn  ESSID:[[key]]  
          Mode:Managed  Frequency:2.412 GHz  Access Point: [[Mac]]   
          Bit Rate=54 Mb/s   Tx-Power=15 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Encryption key:[[key]]
          Power Management:on
          Link Quality=51/70  Signal level=-59 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:8   Missed beacon:0

Ifconfig

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:22 errors:0 dropped:0 overruns:0 frame:0
          TX packets:22 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:1553 (1.5 KB)  TX bytes:1553 (1.5 KB)

wlan0     Link encap:Ethernet  HWaddr [[mac]]  
          inet addr:192.168.0.104  Bcast:192.168.0.255  Mask:255.255.255.0
          inet6 addr: [[address]] Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:268 errors:0 dropped:0 overruns:0 frame:0
          TX packets:8 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:49888 (49.8 KB)  TX bytes:1312 (1.3 KB)

I'm not sure what lo could be to be honest, so I posted it anyway!

I do not see anything wrong, as a matter of fact, wlan0 has been authenticated and it was offered a valid ip (192.168.0.104), this ip offered came from DHCP server...Link quality is little over 70% (-59dbi is quite good)..

Please, try to do this: Boot up with LiveCD, and try to connect to router..See if it works...

[new2youalso]

you also might make sure wicd is set to wlan0 and eth0 in pref's as default i think is wlan1 and eth1
if you were just trying to get wicd to scan

[redness1234]

When booting from live disk, I started networking with "start networking" and then opened wicd. When I opened it I got an error saying "Could not connect to wicd's D-bus interface. Check the wicd log for error messages." After I clicked okay, everything opened normally.

I connected again successfully to the network but still no internet.

[VulpiArgenti]

Association, authentication and DHCP all seem to be working. This suggests the problem is in route and/or dns. There are many tutorials on how to troubleshoot this eg http://www.tecmint.com/linux-network...ting-commands/

[maverik35]

Make sure you have internet service active or check your router configuration as suggested by VulpiArgenti, I certaily belive the issue is not with BT5...

By the way, have you tried using ethernet port (Wired)?...

[redness1234]

I have tried other networks and I am getting the same issues surprisingly! I tried ethernet on my home network but it stalls at "getting ip"