Unable to recieve packets when connected to WEP enabled network

I am unable to recieve packets when connected to a WEP enabled network,
although i can send.

When WEP is turned off, I am able to send and recieve packets.

It's an OS problem as I have tried both onboard and various PCMICIA
cards.

I am running windows xp sp2 pro with all avaliable updates

Any ideas?

Regards

(E-Mail Removed) hath wroth:

>I am unable to recieve packets when connected to a WEP enabled network,
>although i can send.
>
>When WEP is turned off, I am able to send and recieve packets.
>
>It's an OS problem as I have tried both onboard and various PCMICIA
>cards.

Use the Hex WEP key, not the ASCII key. There are two algorithms for
converting from ASCII to Hex. MS Wireless Zero Config only supports
one of them. To avoid the conversion problem, use the Hex key.

--
Jeff Liebermann (E-Mail Removed)
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558

unfortunately thats not the problem, any other ideas?

On 7 Jun 2006 14:13:23 -0700, "BizkitsBoiler" <(E-Mail Removed)>
wrote in <(E-Mail Removed) .com>:

>unfortunately thats not the problem, any other ideas?

How to you know you can send but not receive? TCP is bi-directional.
Are you using UDP?

--
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i can tell by simply looking at the status of the connection, i can
send packets out but cannot receive

if i set a static ip on the wep enabled connection, i can see on my ap
and switch that data is being sent from the laptop when i ping other
devices on my network.

again, it's not an ap or wireless card problem, i have tried many! and
they all work on other machines etc


i'm really stuck!!

"BizkitsBoiler" <(E-Mail Removed)> hath wroth:

>i can tell by simply looking at the status of the connection, i can
>send packets out but cannot receive

Since it works with no encryption, I assume that the network
interfaces are functional. Incidentally, could you verify that
literally everything works correctly with no encryption? If you have
the client computer set for DHCP, please verify that you're actually
getting a DHCP assigned IP address from the router.

What you are seeing is your Windoze box *ATTEMPING* to send packets to
a broken wireless connection. (I'm not sure I'm describing this very
clearly). The send packets are not going anywhere. If you check the
logs on whatever you're using for a destination router or access
point, you'll find that nothing arrives. You can demonstrate the same
effect by trying to "send" packets to an unplugged ethernet
connection. You'll see a few packets being sent, but nothing
received. Same problem.

Now, kindly double check your WEP key and be sure to use a Hex, not
ASCII key.

If you want any furthur guesswork, kindly disclose the maker, model,
hardware mutation, and possibly firmware version of your router and
wireless client. There are device and version specific bugs.

>if i set a static ip on the wep enabled connection, i can see on my ap
>and switch that data is being sent from the laptop when i ping other
>devices on my network.

Could you re-write the above sentence? I don't understand what you're
saying. I think you say that you can see the lights flash. That
doesn't mean anything.

>again, it's not an ap or wireless card problem, i have tried many! and
>they all work on other machines etc

Assumption, the mother of all screwups.

--
Jeff Liebermann (E-Mail Removed)
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558

Never mind the ping bit


As for the HEX and ASII key thing, i have no idea what your on about?
i'm using the windows client to connect wireless networks (it's not AP
specific).

I use a cisco 1230AG at home, works fine with other laptops apart from
mine, I found something else out............... no matter what I enter
for the wep key, it connects (says it does, even though it hasn't),
even if the wep key is completely wrong. Rather bizarre and annoying
problem!

"BizkitsBoiler" <(E-Mail Removed)> hath wroth:

>Never mind the ping bit

What ping bit?

>As for the HEX and ASII key thing, i have no idea what your on about?

Hexadecimal keys have characters 0-9 plus a b c d and e.
ASCII keys use all the letters of the alphabet (except some
punctuation marks). The router and client converts the ASCII keys
into Hex to make it more "convenient" to enter the key.
Number of characters
Bits ASCII Hex
WEP64 5 10
WEP128 13 26
The problem is that different manufactories have different ideas of
how to convert ASCII into Hex. There are at least 2 such algorithms
and I think I may have found a third. Windoze Wireless Zero Config
only supports one of them.

>i'm using the windows client to connect wireless networks (it's not AP
>specific).

Any particular wireless card or laptop? They're not all the same.

>I use a cisco 1230AG at home, works fine with other laptops apart from
>mine,

The 1230AG supports WPA. Why are you using WEP? WEP offers almost no
security these days with all the WEP crackers around. Switch to WPA.

>I found something else out............... no matter what I enter
>for the wep key, it connects (says it does, even though it hasn't),
>even if the wep key is completely wrong. Rather bizarre and annoying
>problem!

Yep. Windoze Wireless Zero Config is stupid. It offers absolutely
useless connection progress information. To Microsoft, "connected"
means that it has found a wireless access point and that it should
begin negotiating the encryption keys etc. However, the stupid status
messages says "Obtaining IP address" which persists until it times out
with a "limited connectivity" message. Microsoft does not offer to
mention that what really happened is that the encryption key
negotiation has failed. It should have said "negotiating encryption
key" and then failed. They just forgot this important message.

Dive into your 1230AG and extract the WEP key in Hexadecimal. It's
there. Type that into the connection dialog and it will work.
However, I would abandon WEP, and switch to WPA, which conveniently
doesn't have the ASCII/Hex problem.
--
Jeff Liebermann (E-Mail Removed)
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558