> My LAN is mostly cabled but I use a wireless connection for my laptop, so
> this is only in use occasionally. Twice in the last year my wireless
> connection has been inoperable, and I eventually solved the problem by
> changing the frequency of my Access Point. I also noticed on both occasions
> that the laptop was detecting more wireless networks in the area, so I
> concluded that one of the new networks was sharing the same frequency as
> mine, and this was causing interference.
>
> Is this supposed to happen? Isn't there a way that digital transmissions can
> be segregated so that networks can share a frequency? In Europe there are
> only 13 available channels so it seems possible in any densely populated area
> you could quickly get a situation where every network had to share a
> frequency with at least one other in range.
>
> Could it be a problem with my Access Point (Netgear WG602v3)? Is there some
> setting I can make to allow the network to successfully share a channel?
>
> Grateful for any suggestions.
>
> By the way, I tried searching the news group for the words frequency and
> channel in case this issue had been raised before but in both cases the
> search gave no hits. I then tried searching for a word in the title of the
> first message and it still gave no hits. Is the search working properly? Has
> anyone else experienced this?

"Lem" wrote:

> simonc wrote:
> > My LAN is mostly cabled but I use a wireless connection for my laptop, so
> > this is only in use occasionally. Twice in the last year my wireless
> > connection has been inoperable, and I eventually solved the problem by
> > changing the frequency of my Access Point. I also noticed on both occasions
> > that the laptop was detecting more wireless networks in the area, so I
> > concluded that one of the new networks was sharing the same frequency as
> > mine, and this was causing interference.
> >
> > Is this supposed to happen? Isn't there a way that digital transmissions can
> > be segregated so that networks can share a frequency? In Europe there are
> > only 13 available channels so it seems possible in any densely populated area
> > you could quickly get a situation where every network had to share a
> > frequency with at least one other in range.
> >
> > Could it be a problem with my Access Point (Netgear WG602v3)? Is there some
> > setting I can make to allow the network to successfully share a channel?
> >
> > Grateful for any suggestions.
> >
> > By the way, I tried searching the news group for the words frequency and
> > channel in case this issue had been raised before but in both cases the
> > search gave no hits. I then tried searching for a word in the title of the
> > first message and it still gave no hits. Is the search working properly? Has
> > anyone else experienced this?
>
> You've hit on a problem that is only likely to get worse with the
> increasing popularity of wifi networks -- at least until the industry
> comes up with an entirely new and different model.
>
> In the U.S., unlike Europe, there are only 11 channels.  However, there
> are actually only 3 "non-overlapping channels:" 1, 6, and 11 (they
> actually overlap a little, but should be sufficiently attenuated so as
> to not interfere with each other).  See this Cisco white paper:
> http://www.cisco.com/en/US/products/hw/wireless/ps430/prod_technical_reference09186a00802846a2.html#wp27831
> (tinyurl to same page: http://tinyurl.com/8yhyx)
> Moreover, some new "draft 802.11n" devices default to using 2 "bonded"
> channels for enhanced throughput, which causes increased interference
> with nearby 802.11b or 802.11g networks.  I've seen one article that
> says, "The most critical issue currently is how to resolve the 'bad
> neighbor' effect of the current Draft N hardware."
>
> In addition, the 2.4 GHz radio band is shared with other devices (e.g.,
> cordless telephones, microwave ovens) and frequencies used by channels 1
> through 6 fall within the range of the 2.4 gigahertz amateur radio band.
>
> The solution currently in effect is to limit the power output of wifi
> devices so that, one hopes, they will be installed far enough apart to
> not interfere.  As you've experience, however, in practice, there often
> is interference.
> --
> Lem   MS MVP -- Networking
>
> To the moon and back with 64 Kbits of RAM and 512 Kbits of ROM.
> http://en.wikipedia.org/wiki/Apollo_Guidance_Computer
>

"simonc" <sim***@discussions.microsoft.com> wrote in message
news:27534B06-74D5-4470-8036-F3052A177864@microsoft.com...
> Thanks for this reply. Let's hope pressure of demand on wireless networks
> forces a solution sooner rather than later. Didn't anybody forsee this
> coming?
>
> Still can't make search work in this newsgroup. Can anyone else?
>
> "Lem" wrote:
>
>> simonc wrote:
>> > My LAN is mostly cabled but I use a wireless connection for my laptop,
>> > so
>> > this is only in use occasionally. Twice in the last year my wireless
>> > connection has been inoperable, and I eventually solved the problem by
>> > changing the frequency of my Access Point. I also noticed on both
>> > occasions
>> > that the laptop was detecting more wireless networks in the area, so I
>> > concluded that one of the new networks was sharing the same frequency
>> > as
>> > mine, and this was causing interference.
>> >
>> > Is this supposed to happen? Isn't there a way that digital
>> > transmissions can
>> > be segregated so that networks can share a frequency? In Europe there
>> > are
>> > only 13 available channels so it seems possible in any densely
>> > populated area
>> > you could quickly get a situation where every network had to share a
>> > frequency with at least one other in range.
>> >
>> > Could it be a problem with my Access Point (Netgear WG602v3)? Is there
>> > some
>> > setting I can make to allow the network to successfully share a
>> > channel?
>> >
>> > Grateful for any suggestions.
>> >
>> > By the way, I tried searching the news group for the words frequency
>> > and
>> > channel in case this issue had been raised before but in both cases the
>> > search gave no hits. I then tried searching for a word in the title of
>> > the
>> > first message and it still gave no hits. Is the search working
>> > properly? Has
>> > anyone else experienced this?
>>
>> You've hit on a problem that is only likely to get worse with the
>> increasing popularity of wifi networks -- at least until the industry
>> comes up with an entirely new and different model.
>>
>> In the U.S., unlike Europe, there are only 11 channels.  However, there
>> are actually only 3 "non-overlapping channels:" 1, 6, and 11 (they
>> actually overlap a little, but should be sufficiently attenuated so as
>> to not interfere with each other).  See this Cisco white paper:
>> http://www.cisco.com/en/US/products/hw/wireless/ps430/prod_technical_reference09186a00802846a2.html#wp27831
>> (tinyurl to same page: http://tinyurl.com/8yhyx)
>> Moreover, some new "draft 802.11n" devices default to using 2 "bonded"
>> channels for enhanced throughput, which causes increased interference
>> with nearby 802.11b or 802.11g networks.  I've seen one article that
>> says, "The most critical issue currently is how to resolve the 'bad
>> neighbor' effect of the current Draft N hardware."
>>
>> In addition, the 2.4 GHz radio band is shared with other devices (e.g.,
>> cordless telephones, microwave ovens) and frequencies used by channels 1
>> through 6 fall within the range of the 2.4 gigahertz amateur radio band.
>>
>> The solution currently in effect is to limit the power output of wifi
>> devices so that, one hopes, they will be installed far enough apart to
>> not interfere.  As you've experience, however, in practice, there often
>> is interference.
>> --
>> Lem   MS MVP -- Networking
>>
>> To the moon and back with 64 Kbits of RAM and 512 Kbits of ROM.
>> http://en.wikipedia.org/wiki/Apollo_Guidance_Computer
>>

"David Hettel" <dah***@hotmail.com> wrote in message
news:OQDclghHHHA.3540@TK2MSFTNGP02.phx.gbl...
> Twice in the last year my wireless
>>> > connection has been inoperable, and I eventually solved the problem by
>>> > changing the frequency of my Access Point. I also noticed on both
>>> > occasions
>>> > that the laptop was detecting more wireless networks in the area, so I
>>> > concluded that one of the new networks was sharing the same frequency
>>> > as
>>> > mine, and this was causing interference.
>
> In my area there are a number of other networks present. Simply because I
> see other networks even if they are on the same channel as I am does not
> mean I will not be able to connect to my access point. While they may
> cause interference, this does not mean that if there are four or more
> networks present you should expect to not connect. Are you in an area of
> low signal strength, are you at the edge of the range of your access
> point?
>
> --
> David Hettel
>
> Please post any reply as a follow-up message in the news group for
> everyone
> to see.  I'm sorry, but I don't answer questions addressed directly to me
> in
> E-mail or news groups.
>
> Microsoft Most Valuable Professional Program
> http://mvp.support.microsoft.com
>
> DISCLAIMER: This posting is provided "AS IS" with no warranty of any kind,
> either expressed or implied, made in relation to the accuracy, reliability
> or content of this post. The author shall not be liable for any direct,
> indirect, incidental or consequential damages arising out of the use of,
> or
> inability to use, information or opinions expressed in this post and
> confers
> no rights.
>
>
>
> "simonc" <sim***@discussions.microsoft.com> wrote in message
> news:27534B06-74D5-4470-8036-F3052A177864@microsoft.com...
>> Thanks for this reply. Let's hope pressure of demand on wireless networks
>> forces a solution sooner rather than later. Didn't anybody forsee this
>> coming?
>>
>> Still can't make search work in this newsgroup. Can anyone else?
>>
>> "Lem" wrote:
>>
>>> simonc wrote:
>>> > My LAN is mostly cabled but I use a wireless connection for my laptop,
>>> > so
>>> > this is only in use occasionally. Twice in the last year my wireless
>>> > connection has been inoperable, and I eventually solved the problem by
>>> > changing the frequency of my Access Point. I also noticed on both
>>> > occasions
>>> > that the laptop was detecting more wireless networks in the area, so I
>>> > concluded that one of the new networks was sharing the same frequency
>>> > as
>>> > mine, and this was causing interference.
>>> >
>>> > Is this supposed to happen? Isn't there a way that digital
>>> > transmissions can
>>> > be segregated so that networks can share a frequency? In Europe there
>>> > are
>>> > only 13 available channels so it seems possible in any densely
>>> > populated area
>>> > you could quickly get a situation where every network had to share a
>>> > frequency with at least one other in range.
>>> >
>>> > Could it be a problem with my Access Point (Netgear WG602v3)? Is there
>>> > some
>>> > setting I can make to allow the network to successfully share a
>>> > channel?
>>> >
>>> > Grateful for any suggestions.
>>> >
>>> > By the way, I tried searching the news group for the words frequency
>>> > and
>>> > channel in case this issue had been raised before but in both cases
>>> > the
>>> > search gave no hits. I then tried searching for a word in the title of
>>> > the
>>> > first message and it still gave no hits. Is the search working
>>> > properly? Has
>>> > anyone else experienced this?
>>>
>>> You've hit on a problem that is only likely to get worse with the
>>> increasing popularity of wifi networks -- at least until the industry
>>> comes up with an entirely new and different model.
>>>
>>> In the U.S., unlike Europe, there are only 11 channels.  However, there
>>> are actually only 3 "non-overlapping channels:" 1, 6, and 11 (they
>>> actually overlap a little, but should be sufficiently attenuated so as
>>> to not interfere with each other).  See this Cisco white paper:
>>> http://www.cisco.com/en/US/products/hw/wireless/ps430/prod_technical_reference09186a00802846a2.html#wp27831
>>> (tinyurl to same page: http://tinyurl.com/8yhyx)
>>> Moreover, some new "draft 802.11n" devices default to using 2 "bonded"
>>> channels for enhanced throughput, which causes increased interference
>>> with nearby 802.11b or 802.11g networks.  I've seen one article that
>>> says, "The most critical issue currently is how to resolve the 'bad
>>> neighbor' effect of the current Draft N hardware."
>>>
>>> In addition, the 2.4 GHz radio band is shared with other devices (e.g.,
>>> cordless telephones, microwave ovens) and frequencies used by channels 1
>>> through 6 fall within the range of the 2.4 gigahertz amateur radio band.
>>>
>>> The solution currently in effect is to limit the power output of wifi
>>> devices so that, one hopes, they will be installed far enough apart to
>>> not interfere.  As you've experience, however, in practice, there often
>>> is interference.
>>> --
>>> Lem   MS MVP -- Networking
>>>
>>> To the moon and back with 64 Kbits of RAM and 512 Kbits of ROM.
>>> http://en.wikipedia.org/wiki/Apollo_Guidance_Computer
>>>
>

: From: "Bill Radio" <Wirel***@MountainWirelessNOSPAN.com>
: Newsgroups: alt.internet.wireless
: Subject: Choosing a Channel?
: Date: Sun, 3 Dec 2006 00:12:12 -0700
: Organization: Posted via Supernews, http://www.supernews.com
: Message-ID: <12n4u6c4unun***@corp.supernews.com>

"simonc" <sim***@discussions.microsoft.com> wrote in message
news:E0E0F1F0-4469-4337-A51D-7614EB258F6C@microsoft.com...
> My LAN is mostly cabled but I use a wireless connection for my laptop, so
> this is only in use occasionally. Twice in the last year my wireless
> connection has been inoperable, and I eventually solved the problem by
> changing the frequency of my Access Point. I also noticed on both
> occasions
> that the laptop was detecting more wireless networks in the area, so I
> concluded that one of the new networks was sharing the same frequency as
> mine, and this was causing interference.
>
> Is this supposed to happen? Isn't there a way that digital transmissions
> can
> be segregated so that networks can share a frequency? In Europe there are
> only 13 available channels so it seems possible in any densely populated
> area
> you could quickly get a situation where every network had to share a
> frequency with at least one other in range.
>
> Could it be a problem with my Access Point (Netgear WG602v3)? Is there
> some
> setting I can make to allow the network to successfully share a channel?
>
> Grateful for any suggestions.
>
> By the way, I tried searching the news group for the words frequency and
> channel in case this issue had been raised before but in both cases the
> search gave no hits. I then tried searching for a word in the title of the
> first message and it still gave no hits. Is the search working properly?
> Has
> anyone else experienced this?