On Aug 19, 2011, at 10:22 PM, Oleg Goldshmidt wrote:
geoffrey mendelson <[email protected]> writes:
My guess is that you changed the region/country/jusridiction
In different parts of the world, different channels are legal. For
example, in some places channels 1-13 are legal, others, 1-12, or
3-14. In Israel it is 4-8 with 1-3 and 9-13 "shared" with the IDF.
Since a wifi channel really uses 3 channels, one one each side of the
main channel, if your router is set for one jurisdiction and the
computer another, channels at either end may not work.
I'm sure is not applicable to you, is that if you don't change the
SSID or use encryption, your computer will sign on to the strongest
network of the same name. As the signal fades or gets stronger
(roaming) the computer will switch to the strongest signal it finds.
All those people who got BEZEQ wifi routers with an SSID of SIEMENS
were using each other's wifi without knowing it.
Don't say it's not happening now, when I was in the hospital in April,
there were 3 networks I could reach, the hospital's protected network
for internal use, the hopsital's open networks giving almost 100%
coverage on several channels and an open network with a "default" name
from another building.
A friend of mine just moved to haifa, and he found that there was
"free" wifi in his new apartment. :-(
Geoff.
--
Geoffrey S. Mendelson, N3OWJ/4X1GM
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