Have you tried turning band steering to 80/20? Or, simply turn off the 2.4 radio to A/B it?


Larry Dougher
Chief Information Officer
Information Technology Services
Windsor Southeast Supervisory Union
127 State Street, Windsor, VT 05089
Email | Google+Twitter | LinkedIn | (802) 674-8336

On Tue, Jun 24, 2014 at 3:12 PM, Bob Wickberg <[log in to unmask]> wrote:
If the APs are too closely packed, and you don't turn the power down, they
can interfere with each other.  But especially if you're talking about the
2.4ghz band, there's a lot of other things that can use the spectrum
and/or cause interference, too: cordless phones, microwave ovens,

Great test equipment for problems like this isn't cheap. I'd kill for a
Fluke AirMagnet, but....

Some of Metageek's tools that aren't too expensive might do the trick, or
not, like this one:

Metageek does have a 30 day money back policy, so you could try it and
see, if you don't mind tying up some of your credit card limit.  They
don't take POs as far as I know.

Bob Wickberg
Technology Coordinator
Brattleboro Union High School District # 6

School Information Technology Discussion <[log in to unmask]> writes:
>We have a wing in our school where Wifi was an issue for some of the just
>ended school year.  Thinking it was an AP issue we called Aerohive tech
>support and they found that in that wing, the AP's are experiencing CRC
>errors above 50% - one exceed 90%. (He said anything below 20% is OK.)
>The tech support person attributed it to RF interference from what he
>could see.  As far as we know nothing is different in the hallway from an
>infrastructure standpoint- including the building, lights, air handling
>Anyone have any ideas on how to measure/monitor the interference to try
>to track it down?
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