Wireless network found but cannot connect

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g1annis
Level 1
Level 1
Posts: 2
Joined: Sat Nov 19, 2011 6:01 am

Wireless network found but cannot connect

Post by g1annis » Sat Nov 19, 2011 6:24 am

I run Linux Mint 11 and I have a LevelOne WNC-0301 pci wireless card.
The hardware was recognised by the installation and seemed to work out of the box. Thus I unplugged the cable in order to connect wireless. The wireless network found with full signal strength (as the router is just 3-4 meters away and there is nothing between this and the computer.

The pop-up window that asks for WPA/WPA2 password opened I put the password but the connection fails. I tried the password several times (I took into account the case sensitivity), I even connected wired to the router to copy the key from the gui of the router but it doesn't do anything...

Of course the password is correct as there are two more computers, a laptop running Win7, and a desktop running Debian testing using the same wireless card, and I just tested the connectivity once again.

Here is my hardware setup

Code: Select all

$ lspci
00:00.0 Host bridge: ATI Technologies Inc RS690 Host Bridge
00:02.0 PCI bridge: ATI Technologies Inc RS690 PCI to PCI Bridge (PCI Express Graphics Port 0)
00:07.0 PCI bridge: ATI Technologies Inc RS690 PCI to PCI Bridge (PCI Express Port 3)
00:12.0 SATA controller: ATI Technologies Inc SB600 Non-Raid-5 SATA
00:13.0 USB Controller: ATI Technologies Inc SB600 USB (OHCI0)
00:13.1 USB Controller: ATI Technologies Inc SB600 USB (OHCI1)
00:13.2 USB Controller: ATI Technologies Inc SB600 USB (OHCI2)
00:13.3 USB Controller: ATI Technologies Inc SB600 USB (OHCI3)
00:13.4 USB Controller: ATI Technologies Inc SB600 USB (OHCI4)
00:13.5 USB Controller: ATI Technologies Inc SB600 USB Controller (EHCI)
00:14.0 SMBus: ATI Technologies Inc SBx00 SMBus Controller (rev 14)
00:14.1 IDE interface: ATI Technologies Inc SB600 IDE
00:14.2 Audio device: ATI Technologies Inc SBx00 Azalia (Intel HDA)
00:14.3 ISA bridge: ATI Technologies Inc SB600 PCI to LPC Bridge
00:14.4 PCI bridge: ATI Technologies Inc SBx00 PCI to PCI Bridge
00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration
00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map
00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Controller
00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscellaneous Control
01:00.0 VGA compatible controller: nVidia Corporation G84 [GeForce 8600 GT] (rev a1)
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 01)
03:00.0 FireWire (IEEE 1394): VIA Technologies, Inc. VT6306/7/8 [Fire II(M)] IEEE 1394 OHCI Controller (rev c0)
03:03.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8185 IEEE 802.11a/b/g Wireless LAN Controller (rev 20)
This is my iwconfig

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$ iwconfig
lo        no wireless extensions.

eth0      no wireless extensions.

wlan0     IEEE 802.11bg  ESSID:"hol - NetFasteR WLAN 3"  
          Mode:Managed  Frequency:2.412 GHz  Access Point: Not-Associated   
          Tx-Power=20 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Power Management:off

Here is the mintWifi with the cable unplugged

Code: Select all

$ sudo /usr/lib/linuxmint/mintWifi/mintWifi.py
-------------------------
* I. scanning WIFI PCI devices...
-------------------------
* II. querying ndiswrapper...
-------------------------
* III. querying iwconfig...
lo        no wireless extensions.

eth0      no wireless extensions.

wlan0     IEEE 802.11bg  ESSID:"hol - NetFasteR WLAN 3"  
          Mode:Managed  Frequency:2.412 GHz  Access Point: Not-Associated   
          Tx-Power=20 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
          
-------------------------
* IV. querying ifconfig...
eth0      Link encap:Ethernet  HWaddr 00:19:db:c2:16:d3  
          inet6 addr: fe80::219:dbff:fec2:16d3/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:55670 errors:0 dropped:0 overruns:0 frame:0
          TX packets:37208 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:73064462 (73.0 MB)  TX bytes:3921571 (3.9 MB)
          Interrupt:42 

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:28 errors:0 dropped:0 overruns:0 frame:0
          TX packets:28 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:1680 (1.6 KB)  TX bytes:1680 (1.6 KB)

wlan0     Link encap:Ethernet  HWaddr 00:11:6b:65:68:b1  
          inet6 addr: fe80::211:6bff:fe65:68b1/64 Scope:Link
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:15 errors:0 dropped:0 overruns:0 frame:0
          TX packets:58 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:2025 (2.0 KB)  TX bytes:12003 (12.0 KB)

-------------------------
* V. querying DHCP...
-------------------------
* VI. querying nslookup google.com...
;; connection timed out; no servers could be reached
and here it is with the cable plugged

Code: Select all

$ sudo /usr/lib/linuxmint/mintWifi/mintWifi.py
-------------------------
* I. scanning WIFI PCI devices...
-------------------------
* II. querying ndiswrapper...
-------------------------
* III. querying iwconfig...
lo        no wireless extensions.

eth0      no wireless extensions.

wlan0     IEEE 802.11bg  ESSID:"hol - NetFasteR WLAN 3"  
          Mode:Managed  Frequency:2.412 GHz  Access Point: Not-Associated   
          Tx-Power=20 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
          
-------------------------
* IV. querying ifconfig...
eth0      Link encap:Ethernet  HWaddr 00:19:db:c2:16:d3  
          inet addr:192.168.2.5  Bcast:192.168.2.255  Mask:255.255.255.0
          inet6 addr: fe80::219:dbff:fec2:16d3/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:55391 errors:0 dropped:0 overruns:0 frame:0
          TX packets:36904 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:72887642 (72.8 MB)  TX bytes:3861202 (3.8 MB)
          Interrupt:42 

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:28 errors:0 dropped:0 overruns:0 frame:0
          TX packets:28 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:1680 (1.6 KB)  TX bytes:1680 (1.6 KB)

wlan0     Link encap:Ethernet  HWaddr 00:11:6b:65:68:b1  
          inet6 addr: fe80::211:6bff:fe65:68b1/64 Scope:Link
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:15 errors:0 dropped:0 overruns:0 frame:0
          TX packets:58 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:2025 (2.0 KB)  TX bytes:12003 (12.0 KB)

-------------------------
* V. querying DHCP...
-------------------------
* VI. querying nslookup google.com...
Server:		192.168.2.1
Address:	192.168.2.1#53

Non-authoritative answer:
Name:	google.com
Address: 209.85.148.105
Name:	google.com
Address: 209.85.148.106
Name:	google.com
Address: 209.85.148.147
Name:	google.com
Address: 209.85.148.99
Name:	google.com
Address: 209.85.148.103
Name:	google.com
Address: 209.85.148.104
Any ideas?

g1annis
Level 1
Level 1
Posts: 2
Joined: Sat Nov 19, 2011 6:01 am

Re: Wireless network found but cannot connect

Post by g1annis » Sat Nov 19, 2011 3:55 pm

It was just this stupid nm-applet.

Several years ago I had substituted the gnome-network-manager with wicd because an almost similar problem. That time I couldn't handle my debian machine connection. This time it happened with Linux Mint.

I just removed gnome-network-manager and installed wicd and everything is fixed :wink:

User avatar
Anakinholland
Level 3
Level 3
Posts: 145
Joined: Sun Oct 30, 2011 8:09 am

Re: Wireless network found but cannot connect

Post by Anakinholland » Sat Nov 19, 2011 4:08 pm

The issue was most likely that IPv6 was enabled.

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wlan0     Link encap:Ethernet  HWaddr 00:11:6b:65:68:b1 
          inet6 addr: fe80::211:6bff:fe65:68b1/64 Scope:Link
If you want to know for sure, revert back to NM and try these steps.

Regards,

Anakin
Please Edit your initial post title and add [SOLVED] once your question is resolved.

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