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Old 01-06-2009, 01:48 AM   #1
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trendnet tew-643pi wireless-n card not working

Hi Linux community!

I am running Ubuntu 8.10 and just installed the wireless pci card above. I first installed the card and driver in works fine.

In Ubuntu, I installed the driver with ndiswrapper. The card is being recognized and is seeing my wireless network, but it's not connecting after I enter my WEP key. Here is some terminal output...

eth0      Link encap:Ethernet  HWaddr 00:0c:f1:fc:02:59  
          inet addr:  Bcast:  Mask:
          inet6 addr: fe80::20c:f1ff:fefc:259/64 Scope:Link
          RX packets:95296 errors:0 dropped:0 overruns:0 frame:0
          TX packets:69533 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:120959533 (120.9 MB)  TX bytes:8086205 (8.0 MB)

lo        Link encap:Local Loopback  
          inet addr:  Mask:
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:4 errors:0 dropped:0 overruns:0 frame:0
          TX packets:4 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:200 (200.0 B)  TX bytes:200 (200.0 B)

wlan1     Link encap:Ethernet  HWaddr 00:14:d1:4d:65:18  
          inet6 addr: fe80::214:d1ff:fe4d:6518/64 Scope:Link
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:29 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:8334 (8.3 KB)
          Interrupt:21 Memory:feaed000-feaee000
and...(sparing you my other pci device output)

 lspci -nn
01:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. Device [10ec:8190]
To show that it's seeing my wireless network...

 sudo iwlist scan
[sudo] password for chase: 
lo        Interface doesn't support scanning.

eth0      Interface doesn't support scanning.

wlan1     Scan completed :
          Cell 01 - Address: 00:0F:B3:32:59:AB
                    Protocol:IEEE 802.11g
                    Frequency:2.462 GHz (Channel 11)
                    Quality:71/100  Signal level:-50 dBm  Noise level:-96 dBm
                    Encryption key:on
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 22 Mb/s
                              6 Mb/s; 9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s
                              36 Mb/s; 48 Mb/s; 54 Mb/s

pan0      Interface doesn't support scanning.
Any help would be much appreciated! I don't see what the problem is...I'm able to see the it the WEP key/protocol maybe?

Last edited by fibo112358; 01-06-2009 at 01:49 AM.
Old 01-06-2009, 01:11 PM   #2
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Lot's of views but no replies ... hmm.
Old 01-06-2009, 05:04 PM   #3
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just an update here...

i disabled WEP and was able to connect. This should mean that the problem is isolated to WEP or something in the configuration. Unfortunately, I don't know enough to alter the configuration file. I'm used to just installing a device and driver, and having it work. Any help is much appreciated.
Old 01-07-2009, 06:22 PM   #4
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Wink connected? yes!

Since this is getting some views, I'll post my solution here:

1. I uninstalled Network-manager-gnome.
2. I installed Wicd using the instructions on
3. After trying my WEP key, resetting everything in sight, and trying again with a new key...still no connection.
4. Enabled WPA encryption on my router -> reset.
5. Configured Wicd with WPA and my new key... now have strong connection.

Long story short, use WPA.


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