A little googling shows that the frequency ranges in North America are the same. This makes sense, the allocations seem to be regional with the may differences being on the 2.4 GHZ band. The UK for example supports channels 12 13 and 14, Japan supports a different subset with 14 being limited to 802.11B only and so forth. The other differences are in power output. Mexico has different rating for indoor and outdoor for example, the US limits to 27 DB and the Canadians 20 DB. So the difference between the poster and his neighbor running in US mode is probably in power output rather than channels used.
I also read an interesting article about using a magnetron from a Microwave oven combined with a morse code key to operate at several hundred to thousands of watts of power CW on the 2.4 GHZ band around channel 9 but that’s probably frowned upon now. Also interesting battles between hams and WiFi users but there you go. > On Apr 24, 2017, at 10:18 AM, Jonathan Cohn <jon.c.c...@gmail.com> wrote: > > You might want to research the US/Canada differences in WiFi channel > allocations, I don't know anything about this, and in general don't > understand what types of interference is caused by different sources at > different levels. > > Scott G probably has some sense of this. > > > > On Mon, Apr 24, 2017 at 7:36 AM Jeff Berwick <mailingli...@berwick.name > <mailto:mailingli...@berwick.name>> wrote: > I have three Airport devices advertising the same network and I discovered > that two of them were set to wpa/wpa2 personal while one of them was set to > just wpa2 personal. This seems to have solved my issue for the moment, but > we will see if it crops up again. > > Also, I did a diagnostic and it indicated that there were devices advertising > a US country code and I am in Canada. These devices are not mine, so there > isn’t anything I can do about them, but I found it interesting that network > diagnostics would identify this as a problem—especially since I don’t connect > to these other devices which probably belong to my neighbour. > > Jeff > >> On Apr 23, 2017, at 6:56 PM, Jonathan Cohn <jon.c.c...@gmail.com >> <mailto:jon.c.c...@gmail.com>> wrote: >> >> Any possibility that yo have more devices connected to your router than it >> allows in its settings area? I used to have DHCP problems when I used wired >> networking because of somebody else on the segment also sending out DHCP >> responses, mind you that was a long time ago on a network that no longer >> exists. >> >> Another thing to verify is that nobody else is using your Network ID. If you >> named your wireless networ My Home Network and your next door neighbor did >> the same there would be a very good chance that on occasion you would run >> into issues like this. >> >> >> Best wishes, >> >> Jonathan Cohn >> >> >> >>> On Apr 23, 2017, at 4:21 PM, Jeff Berwick <mailingli...@berwick.name >>> <mailto:mailingli...@berwick.name>> wrote: >>> >>> Hi there, >>> >>> I have an interesting/odd WIFI issue that one of the gurus may be able to >>> solve here. >>> >>> From time to time, I am unable to join my Wireless network as, even though >>> I have instructed my device to remember the network/password in my >>> Keychain, it prompts me for a password. When this happens, I type in the >>> password and it tells me I am wrong—I know I’m not—and denies me access. >>> >>> Today, when I was prompted for the password, I noticed a hint telling me to >>> enter in exactly 64 hexadecimal characters. So, my question is, where is >>> this setting for the Airport Extreme or Airport Time Capsule in the latest >>> Airport Utility? I’ve never seen an option to switch between a pass key or >>> phrase and a hexadecimal value. >>> >>> Thx, >>> Jeff >>> >>> >>> -- >>> The following information is important for all members of the Mac >>> Visionaries list. >>> >>> If you have any questions or concerns about the running of this list, or if >>> you feel that a member's post is inappropriate, please contact the owners >>> or moderators directly rather than posting on the list itself. >>> >>> Your Mac Visionaries list moderator is Mark Taylor. You can reach mark at: >>> macvisionaries+modera...@googlegroups.com >>> <mailto:macvisionaries+modera...@googlegroups.com> and your owner is Cara >>> Quinn - you can reach Cara at caraqu...@caraquinn.com >>> <mailto:caraqu...@caraquinn.com> >>> >>> The archives for this list can be searched at: >>> http://www.mail-archive.com/macvisionaries@googlegroups.com/ >>> <http://www.mail-archive.com/macvisionaries@googlegroups.com/> >>> --- >>> You received this message because you are subscribed to the Google Groups >>> "MacVisionaries" group. >>> To unsubscribe from this group and stop receiving emails from it, send an >>> email to macvisionaries+unsubscr...@googlegroups.com >>> <mailto:macvisionaries+unsubscr...@googlegroups.com>. >>> To post to this group, send email to macvisionaries@googlegroups.com >>> <mailto:macvisionaries@googlegroups.com>. >>> Visit this group at https://groups.google.com/group/macvisionaries >>> <https://groups.google.com/group/macvisionaries>. >>> For more options, visit https://groups.google.com/d/optout >>> <https://groups.google.com/d/optout>. >> >> >> -- >> The following information is important for all members of the Mac >> Visionaries list. >> >> If you have any questions or concerns about the running of this list, or if >> you feel that a member's post is inappropriate, please contact the owners or >> moderators directly rather than posting on the list itself. >> >> Your Mac Visionaries list moderator is Mark Taylor. You can reach mark >> at:macvisionaries+modera...@googlegroups.com >> <mailto:macvisionaries+modera...@googlegroups.com> and your owner is Cara >> Quinn - you can reach Cara at caraqu...@caraquinn.com >> <mailto:caraqu...@caraquinn.com> >> >> The archives for this list can be searched at: >> http://www.mail-archive.com/macvisionaries@googlegroups.com/ >> <http://www.mail-archive.com/macvisionaries@googlegroups.com/> >> --- >> You received this message because you are subscribed to the Google Groups >> "MacVisionaries" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to macvisionaries+unsubscr...@googlegroups.com >> <mailto:macvisionaries+unsubscr...@googlegroups.com>. >> To post to this group, send email to macvisionaries@googlegroups.com >> <mailto:macvisionaries@googlegroups.com>. >> Visit this group at https://groups.google.com/group/macvisionaries >> <https://groups.google.com/group/macvisionaries>. >> For more options, visit https://groups.google.com/d/optout >> <https://groups.google.com/d/optout>. > > > -- > The following information is important for all members of the Mac Visionaries > list. > > If you have any questions or concerns about the running of this list, or if > you feel that a member's post is inappropriate, please contact the owners or > moderators directly rather than posting on the list itself. > > Your Mac Visionaries list moderator is Mark Taylor. You can reach mark > at:macvisionaries+modera...@googlegroups.com > <mailto:macvisionaries%2bmodera...@googlegroups.com> and your owner is Cara > Quinn - you can reach Cara at caraqu...@caraquinn.com > <mailto:caraqu...@caraquinn.com> > > The archives for this list can be searched at: > http://www.mail-archive.com/macvisionaries@googlegroups.com/ > <http://www.mail-archive.com/macvisionaries@googlegroups.com/> > --- > You received this message because you are subscribed to the Google Groups > "MacVisionaries" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to macvisionaries+unsubscr...@googlegroups.com > <mailto:macvisionaries+unsubscr...@googlegroups.com>. > To post to this group, send email to macvisionaries@googlegroups.com > <mailto:macvisionaries@googlegroups.com>. > Visit this group at https://groups.google.com/group/macvisionaries > <https://groups.google.com/group/macvisionaries>. > For more options, visit https://groups.google.com/d/optout > <https://groups.google.com/d/optout>. > > -- > The following information is important for all members of the Mac Visionaries > list. > > If you have any questions or concerns about the running of this list, or if > you feel that a member's post is inappropriate, please contact the owners or > moderators directly rather than posting on the list itself. > > Your Mac Visionaries list moderator is Mark Taylor. You can reach mark at: > macvisionaries+modera...@googlegroups.com and your owner is Cara Quinn - you > can reach Cara at caraqu...@caraquinn.com > > The archives for this list can be searched at: > http://www.mail-archive.com/macvisionaries@googlegroups.com/ > <http://www.mail-archive.com/macvisionaries@googlegroups.com/> > --- > You received this message because you are subscribed to the Google Groups > "MacVisionaries" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to macvisionaries+unsubscr...@googlegroups.com > <mailto:macvisionaries+unsubscr...@googlegroups.com>. > To post to this group, send email to macvisionaries@googlegroups.com > <mailto:macvisionaries@googlegroups.com>. > Visit this group at https://groups.google.com/group/macvisionaries > <https://groups.google.com/group/macvisionaries>. > For more options, visit https://groups.google.com/d/optout > <https://groups.google.com/d/optout>. -- The following information is important for all members of the Mac Visionaries list. 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