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Old 02-13-2006, 07:20 PM   #1
Registered: Nov 2003
Distribution: SUSE
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Exclamation Belkin card claims to associate, doesn't talk to network

Strange goings on here. I've so far bought and used two of Belkin's PCI wireless cards that worked fine , except for one that couldn't get a signal because of some well-placed aluminized heating ducts. So I went and bought their USB wireless network card, F5D7050 & RT2570 chipset. Plug it into the USB port, SuSE recognizes it immediately. Go through the usual setup procedure, enter WEP key on the desktop and enter the card's MAC into the router's allow list.

Click 'finish', restart kinternet, and then the problems start. I click 'connect', the 'connection successful' box pops up, and then nothing happens. Even when I took it to down to my computer where it got a signal of -30dBm, it still claimed to have zero connection quality (The PCI card, buried in wires behind my computer runs at top speed no problem).

It must be able to talk to the AP and the MAC must be allowed if the card manages to associate with it, so what gives? Watching a few ifconfig outputs shows that it's continually sending small packets, apparently trying to connect, but nothing's working. Anyone know what the problem is?
Old 02-13-2006, 08:10 PM   #2
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Look at the output of "iwconfig <wireless-device>" and "iwlist <wireless-device> scan"

Also, if you computer has a builtin NIC device, shut it down, then restart the wireless lan device.
sudo /sbin/rcnetwork stop eth0
sudo /sbin/rcnetwork restart wlan0

This supposes that your wirless device is name 'wlan0'.
First find out if the wireless device is working and the kernel module is loaded. If "iwlist wlan0 scan" returns the ESSID and other information on your AP router, this part is probably OK and you need to check out the authentication process.

I recently installed a wireless PCMCIA linksys card on a dell laptop. Instead of WEP, I used WPA-PSK. I had problems on another laptop because YAST didn't like the case of the letters "A-D" in the hexidecimal key entry. I had to use cut and paste on that laptop and edited the /etc/sysconfig/network/ifcfg-wlan0 file directly.

You may want to look at the contents of the /etc/sysconfig/network/ifcfg-wlan0 file and compare it with the one from a working host, looking for missing entries.
Old 02-19-2006, 03:42 PM   #3
Registered: Nov 2003
Distribution: SUSE
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The output of iwlist and iwscan:
erik:/home/erik-k # iwlist rausb0 scan
rausb0 Scan completed :
Cell 01 - Address: 00:11:50:A5:FB:C8
Encryption keyn

erik:/home/erik-k # iwconfig rausb0
rausb0 RT2500USB WLAN ESSID:"keever_loc" Nickname:"erik"
Mode:Managed Frequency=2.412 GHz Access Point: 00:11:50:A5:FB:C8
Bit Rate=54 Mb/s
RTS thrff Fragment thrff
Encryption key8A0-DB92-7C49-E8CB-E9FA-11E7-FC Security modepen
Link Quality=0/70 Signal level:-45 dBm Noise level:-197 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0

It acts like everything is hunky-dory, but no link. I am careful to make sure that the USB stick is the only working NIC when working on this problem (My computer has it's own PCI wireless NIC and a builtin ethernet port).

The wireless stick is definitely on, as it feels warm if you wrap your hand around it. My output from iwconfig and iwlist is above, and it seems that everything is OK except for 0/70 link. It claims to associate, and there are only so many ways I can tell my wireless router to accept the card's MAC. I have tried using the usb stick with modules rt2500 and rt2570 - same problem.

Unfortunately, I have no working host to compare this with because my family only has one of this card.

One more thing: I took a look at the datarate with kinternet - the card is constantly receiving 840 bps, but never transmits *anything*. Is this indicative of a hardware problem?
Old 02-19-2006, 03:58 PM   #4
Registered: Nov 2003
Distribution: SUSE
Posts: 31

Original Poster
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I ran iwconfig and iwscan - everything came up normal, except for 0/70 link quality. I always make sure that the card I'm working on is the only running wireless card. I've tried the stick with both the rt2500 and rt2570 modules - same problem on both of them.

I don't think the problem is authentication - if it were, I doubt the stick would get as far as saying it managed to associate, and there are only so many ways to tell my router to accept a connection from the stick's MAC address.

Since my family has no other USB stick wireless devices, I have no other working host to compare with.

One other thing - I took at a look at the data rate of the card, even though it wasn't working. It was receiving 840 bytes per second, but never transmitting *anything* back. Do I have a card with a bad transmitter?
Old 02-19-2006, 04:00 PM   #5
Registered: Nov 2003
Distribution: SUSE
Posts: 31

Original Poster
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Wait... how did my first reply get posted! I accidently hit 'post' while I had the non-working card set up. WTF is going on?


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