On 9 Oct 2005 02:48:06 -0700, "Heiko Hilscher" <hhilscher@web.de>
wrote:
>I tried to install a wireless lan connection between our office an our
>home. The distance between ist about 60m but it has a part of a house
>in the middle. So I cannot see the office from home.
Do you have line of sight? That means can you see from one end to the
other. If there is an obstruction in the way, point to point wireless
isn't going to work.
>I bought:
>- a DLINK DI-624 router
>- a DLINK DWL-G710 Range Extender
>- a Highgain antenna with 24 DPI gain
>- a HP NX 8220 Notebook with centrino
Is this system just for connecting one notebook computer or do you
plan to add more remote clients?
Which end has the 24dBi antenna? What type of antenna? How much coax
cable and what type? If it's a dish antenna, do you know that the
beamwidth of the antenna is only about 7 degrees and aiming even at 60
meters is tricky?
>As long I use just the router an the antenne I get a signal with SNR
>23-27 (NetStumpler). Sometimes I can connect, but the most time I have
>no usaable connection.
I read that to mean that it barely works even when you're close to the
DI-624 and with no range extender. Something is wrong here. Before
you blunder onward, I suggest you make sure that the HP NX8220 laptop
and the DI-624 wireless router can connect reliably and with good
speed. That means take a walk while connected to the internet. Leave
the big dish and range extender out of the picture. You should be
able to go about 20 meters away, with no obstructions, and maintain a
solid, reliable, and totally stable connection to the internet. If
not, try to figure out if it's the DI-624 or the NX8220 end by
comparing it with another known working laptop or connecting to a
public hot spot. If the connection is flakey, difficult to maintain,
and erratic, it may also be interference from other networks or
non-802.11 sources such as cordless phones. The dish antenna will
help with these later, but it should be identified.
>If I plase the Extender within my appartment it can connect to the
>router (based on statistic information in the router) but I cannot
>connect to the network.
I'm not going to try and troubleshoot range extender compatibility
issues. Basically, you have to have the same chipset in each device
for this to work. My luck with mixed chipset range extenders and
repeaters has been dismal.
Are you running the latest greatest firmware:
|
http://support.dlink.com/products/vi...tid=DWL%2DG710
>The notebook says the the connection to the
>wlan is good,
>but I cannont surfe on th einternet or get my files from
>the office.
No, the notebook says its connection to the range extender is good.
Can you connect to the build in web server in the DI-624 via the
DWL-G710 range extender? If not, then the range extender is the
problem.
>DLink thinks the signal from the routr is to low.
Baloney. If it's all in the same room, you should have superior
signal stength. Sounds more like a great excuse to not have you
return the DWL-G710 and ask for a refund.
>If I connect the Extender to the antenna an place the router a
>littlebit mor far away I get a signal with about SNR 29 - 39
>(NetStumpler). I can conntect to the network but I have a slow
>connection and sometime interruptions.
Huh? Putting a highly directional antenna on the range extender is a
waste of time. You should get spectacular range in exactly one
direction from the range extender, and nothing in any other direction.
>I also bought another antenna with 12 DPI gain for the home-site of the
>network. But it doesn't change someting.
I don't think you're having an RF problem. I think there's some
manner of fundamental incompatibilty between the various boxes.
|
http://support.dlink.com/faq/view.as...stion=DWL-G710
Is your DI-624 rev C3 hardware with firmware 2.50 or higher?
>Does anybody know some access points or router which have a stronger
>signal than D-LINK?
I don't know of any wireless link that will go through part of a
house. However, at 60 meters, with a 24dBi antenna at the router, and
a 12dBi antenna at the client, there should be enough signal to
"drill" through the obstructing house if there are windows in the line
of sight. I've reliably gone through an office building with high
gain antennas. Remove the range extender and concentrate on the link
path.
>Why dows my notebook confuse when I have both senders nearby? Sometimes
>even the connection is interuppted.
Interference. That's why store and forward repeaters and range
extenders are in my opinion a bad idea.
>If I take the notebook to the office I get good ANR rates but the
>connetcion sometimes confuse between both hotspots an
The "confused" connection is probably due to you having Windoze
Wireless Zero Config set to "connect to best connection" or something
like that. Uncheck the box and manually select the desired
connection.
--
Jeff Liebermann
jeffl@comix.santa-cruz.ca.us
150 Felker St #D
http://www.LearnByDestroying.com
Santa Cruz CA 95060
http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558
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