Wireless Disconnects me

Hi, I am by a company where there is 3 small accesspoints, and a couple

of times every day the other users and me gets disconnected, and its
not at the same time.

Sometime it happens alot and other times it dosent happen.


What can it be ?
Can it be becaus the channels on the 3 router are to close ? at the
moment they are 1,2 and 3.
or can it be becaus 2 of the accespoints are to close to easy other ?
Also there are only 6 meters between 2 of the hotspots, can that have
some thing to say ?

Best Regerds Peter

On 1 Nov 2006 00:07:28 -0800, "Driogan" <(E-Mail Removed)> wrote in
<(E-Mail Removed) .com>:

>Hi, I am by a company where there is 3 small accesspoints, and a couple
>
>of times every day the other users and me gets disconnected, and its
>not at the same time.
>
>Sometime it happens alot and other times it dosent happen.
>
>What can it be ?

The usual problem is interference. See types and remedies in the wikis
below.

>Can it be becaus the channels on the 3 router are to close ? at the
>moment they are 1,2 and 3.

Those are seriously interfering. Try 1, 6, 11, which are the 3 channels
with minimum interference.

>or can it be becaus 2 of the accespoints are to close to easy other ?
>Also there are only 6 meters between 2 of the hotspots, can that have
>some thing to say ?

Really bad to be so close when they are on overlapping channels like
that.

--
Best regards, FAQ for Wireless Internet: <http://Wireless.wikia.com>
John Navas FAQ for Wi-Fi: <http://wireless.wikia.com/wiki/Wi-Fi>
Wi-Fi How To: <http://wireless.wikia.com/wiki/Wi-Fi_HowTo>
Fixes to Wi-Fi Problems: <http://wireless.wikia.com/wiki/Wi-Fi_Fixes>

Hi do you know if there is any thing we can do about the interfirence
from cell phones ?


John Navas skrev:
> On 1 Nov 2006 00:07:28 -0800, "Driogan" <(E-Mail Removed)> wrote in
> <(E-Mail Removed) .com>:
>
> >Hi, I am by a company where there is 3 small accesspoints, and a couple
> >
> >of times every day the other users and me gets disconnected, and its
> >not at the same time.
> >
> >Sometime it happens alot and other times it dosent happen.
> >
> >What can it be ?
>
> The usual problem is interference. See types and remedies in the wikis
> below.
>
> >Can it be becaus the channels on the 3 router are to close ? at the
> >moment they are 1,2 and 3.
>
> Those are seriously interfering. Try 1, 6, 11, which are the 3 channels
> with minimum interference.
>
> >or can it be becaus 2 of the accespoints are to close to easy other ?
> >Also there are only 6 meters between 2 of the hotspots, can that have
> >some thing to say ?
>
> Really bad to be so close when they are on overlapping channels like
> that.
>
> --
> Best regards, FAQ for Wireless Internet: <http://Wireless.wikia.com>
> John Navas FAQ for Wi-Fi: <http://wireless.wikia.com/wiki/Wi-Fi>
> Wi-Fi How To: <http://wireless.wikia.com/wiki/Wi-Fi_HowTo>
> Fixes to Wi-Fi Problems: <http://wireless.wikia.com/wiki/Wi-Fi_Fixes>

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

>Hi do you know if there is any thing we can do about the interfirence
>from cell phones ?

There is no interfernce from cell phones.
Wanna be more specific? (Hardware, models, symptoms, etc).

--
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

Some times when ppl uses there cell phones some one near by or them
self gets disconnected.


Jeff Liebermann skrev:
> "Driogan" <(E-Mail Removed)> hath wroth:
>
> >Hi do you know if there is any thing we can do about the interfirence
> >from cell phones ?
>
> There is no interfernce from cell phones.
> Wanna be more specific? (Hardware, models, symptoms, etc).
>
> --
> 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

In article <(E-Mail Removed) .com>,
"Driogan" <(E-Mail Removed)> wrote:

> Some times when ppl uses there cell phones some one near by or them
> self gets disconnected.

Do you really mean "cell phones?" Or _cordless_ phones? 2.4 gig cordless
phones can kill your wireless internet. You can try changing channels on
your router (although, you seem to be using a lot of channels).
Alternately, you can replace your 2.4 gig phones with 900 mHz, or 5.8
gig, I guess, although that one may be a problem soon too. We're using
channel 6, and the 2.4 phone we use doesn't seem to interfere with our
internet.
--
W. Oates

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

>Some times when ppl uses there cell phones some one near by or them
>self gets disconnected.

Does the cell phone disconnect or the wireless user?

There are some really remote possibilities. Nextel IDEN phones
transmit on 806 to 866MHz. The 4th harmonic lands near the 2.4GHz
band and might cause a problem. However, I've tested such phones and
found no problems. You're also in Denmark where I don't believe these
frequencies are used for cellular.

Another possibility is intermodulation and mixing among your multiple
access points. If they are on channels 1, 2, and 3 as you indicate,
you will have mutual interference. You will also have a mixing of
transmit signals which may land on the receiver channels. Add a cell
phone transmit frequency into the mixing and the frequency
combinations are endless.

I suggest that you:
1. Move the access points to channels 1, 6, and 11.
2. Evaluate if you really need 3 access points. You probably do not.
3. Seperate the antennas and access points so that they don't see
each other.
4. Identify the type of cell phone and access points that are causing
problems.


--
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

In article <(E-Mail Removed)>,
Jeff Liebermann <(E-Mail Removed)> wrote:

> There are some really remote possibilities. Nextel IDEN phones
> transmit on 806 to 866MHz. The 4th harmonic lands near the 2.4GHz
> band and might cause a problem.

I love it. My neighbour plays a piano; how many nodes away from middle-c
would get to my wireless router?
--
W. Oates
Teal'c: He is concealing something.
O'Neil: Like what?
Teal'c: I am unsure, he is concealing it.

Warren Oates <(E-Mail Removed)> hath wroth:

>In article <(E-Mail Removed)>,
> Jeff Liebermann <(E-Mail Removed)> wrote:
>
>> There are some really remote possibilities. Nextel IDEN phones
>> transmit on 806 to 866MHz. The 4th harmonic lands near the 2.4GHz
>> band and might cause a problem.

>I love it. My neighbour plays a piano; how many nodes away from middle-c
>would get to my wireless router?

That depends on what your wireless router perfers. My router seem to
prefer listening to classical, new age, and opera. I suspect that if
I played grunge, techno, glitch, or punk, it would "get to" my router
and probably cause it to crash or hang. I suggest you document what
your neighbor is playing, and correlate it with how well your router
is working. I'm sure there's a connection.


--
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

In article <(E-Mail Removed)>,
Jeff Liebermann <(E-Mail Removed)> wrote:

> I suggest you document what
> your neighbor is playing, and correlate it with how well your router
> is working. I'm sure there's a connection.

Thanks for the reply. My router seems to hang about halfway through any
Edith Piaf tune. It emits what sounds like a sob and just stops working
until I dip its antenna into a small amount of Armagnac and blow
Gauloise smoke in its general direction.
--
W. Oates
Teal'c: He is concealing something.
O'Neil: Like what?
Teal'c: I am unsure, he is concealing it.