3com 3CRWDR100A - Problem with wireless

Hi there,

I am sure someone else has had this problem before.
I looked on Google but I did not manage to find a solution.

The router is a 3com Office Connect ADSL Wireless 11g Firewall Router.

When the encryption is on and two computers connect to the router, the
first one can surf the internet normally, but the second one cannot.
If I disable the encryption everything works fine.

Any idea why that is happening?

Thanks,

Ivam

--
Occhio, che vi vedo !!!

Ivan Virgili - Photographia
http://www.ivanvirgili.com

On Mon, 21 Nov 2005 21:56:50 +0000 (UTC), I'Mad
<(E-Mail Removed)> wrote:

>I am sure someone else has had this problem before.
>I looked on Google but I did not manage to find a solution.
>
>The router is a 3com Office Connect ADSL Wireless 11g Firewall Router.
>
>When the encryption is on and two computers connect to the router, the
>first one can surf the internet normally, but the second one cannot.
>If I disable the encryption everything works fine.
>
>Any idea why that is happening?

Sure. It's been answered about 10 times in the last year but because
the descriptions vary each time, it's difficult to find with Google
Groups.

The problem is the translation for an ASCII WEP key to a Hexadecimal
WEP key. There are two algorithms for doing this. Different
manufacturers support one or the other. Some support a mixture.
Windoze Wireless Zero Config only supports one algorithm. The easy
solution is to NOT use an ASCII WEP key. Use a Hexadecimal WEP key
and it will work on both laptops. Yes, I know it's a pain to type in
26 Hex digits, but cut and paste should make that painless.


--
Jeff Liebermann 150 Felker St #D Santa Cruz CA 95060
831.336.2558 voice
http://www.LearnByDestroying.com AE6KS
http://802.11junk.com Skype: JeffLiebermann
(E-Mail Removed) (E-Mail Removed)

Jeff Liebermann wrote:
> On Mon, 21 Nov 2005 21:56:50 +0000 (UTC), I'Mad
> <(E-Mail Removed)> wrote:
>
>
>>I am sure someone else has had this problem before.
>>I looked on Google but I did not manage to find a solution.
>>
>>The router is a 3com Office Connect ADSL Wireless 11g Firewall Router.
>>
>>When the encryption is on and two computers connect to the router, the
>>first one can surf the internet normally, but the second one cannot.
>>If I disable the encryption everything works fine.
>>
>>Any idea why that is happening?
>
>
> Sure. It's been answered about 10 times in the last year but because
> the descriptions vary each time, it's difficult to find with Google
> Groups.
>
> The problem is the translation for an ASCII WEP key to a Hexadecimal
> WEP key. There are two algorithms for doing this. Different
> manufacturers support one or the other. Some support a mixture.
> Windoze Wireless Zero Config only supports one algorithm. The easy
> solution is to NOT use an ASCII WEP key. Use a Hexadecimal WEP key
> and it will work on both laptops. Yes, I know it's a pain to type in
> 26 Hex digits, but cut and paste should make that painless.
>

Hi Jeff,

Thank you for your reply.

My problem is slightly different.
I am already using the HEX WEP Key type.

If I only connect to the router (wireless) computer A or B, that
computer manages to surf the Internet normally.
If I connect to the router computer A and then computer B, computer A
can surf normally, but computer B cannot, even if it got an IP address
from the router.

The same happens if computer B connects firts and then computer A does.
Computer B will surf normally, but computer A will not be able to do it.

There is not traffic at all from/to that computer.

Ivan

--
Occhio, che vi vedo !!!

Ivan Virgili - Photographia
http://www.ivanvirgili.com

On Tue, 22 Nov 2005 16:10:26 +0000 (UTC), I'Mad
<(E-Mail Removed)> wrote:

>My problem is slightly different.
>I am already using the HEX WEP Key type.

So much for that idea. I didn't understand your problem.

>If I only connect to the router (wireless) computer A or B, that
>computer manages to surf the Internet normally.
>If I connect to the router computer A and then computer B, computer A
>can surf normally, but computer B cannot, even if it got an IP address
>from the router.
>
>The same happens if computer B connects firts and then computer A does.
>Computer B will surf normally, but computer A will not be able to do it.
>
>There is not traffic at all from/to that computer.

Apparently, something is wrong with either the routeing or DHCP. In
order to determine the problem, I need to know what your computers are
getting for IP addresses. Could you disclose:

Computer A
IP Address:
Gateway Address:

Computer B
IP Address:
Gateway Address:

Assume that computer A is the first to connect. If your two machines
get addresses of 192.168.1.xx and the gateway IP is 192.168.1.1, then
DHCP is working and something else must be wrong.

If computer A gets a routeable IP addresses, similar to one delivered
by your ISP, and computer B ends up on 169.254.xxx.xxx, then you have
your DSL or cable modem plugged into the LAN port of the router and
not the WAN(internet) port on the router.

--
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