The neighbor does not appear to be playing nice in the public wireless 
spectrum, knowingly or unknowingly.  Perhaps you can check to see if you are 
using all the channels there are - perhaps work with your Public 
Relations/Marketing team to reach out to them and address it with the neighbor 
through a meeting.  Often times this is just someone being funny and have no 
clue what "40Mhz" or "2.4" means.
As a policy, we do not allow personal APs, wireless routers, or anything else 
that interferes with the campus network - I actively shut down ports to 
personal access points and routers.  I will often follow this up with a 
scheduled, supervised visit to the room to discuss what caused them to want to 
use it - occasionally there is an issue I'm not aware of, or was not reported.  
It often turns into a learning and beneficial meeting so they know we care and 
want them to have good wireless.  The students are often not trying to be 
malicious - they just want to get wireless reliably on their 
phone/tablet/laptop/game console/streaming device.  When it doesn't work and 
doesn't get better, they often don't know who to go to, or that they CAN ask 
questions.  I would suggest leading by example - see if you can turn down the 
power on the APs on the edge of your campus map to provide coverage for the 
area you need, but not beyond, so you are not flooding the wireless spectrum 
with your enterprise-grade radios.
Just a suggestion.  Its fun having a campus in a densely populated area.


Seth Bean
Administrator of Networks and Telecommunications
MCLA APA Chapter President
Massachusetts College of Liberal Arts

O:413.662.5022
M:413.663.1276
375 Church Street
North Adams,
MA 01247


“National Top Ten
Public Liberal Arts College”
2019 US News & World Report

[cid:65408478-bfc1-425a-88de-993a6a84c69e]

________________________________
From: The EDUCAUSE Wireless Issues Community Group Listserv 
<[email protected]> on behalf of John Rodkey 
<[email protected]>
Sent: Monday, January 27, 2020 3:19 PM
To: [email protected] <[email protected]>
Subject: [WIRELESS-LAN] neighbors 'jamming' 2.4GHz spectrum

CAUTION: This email originated from outside of MCLA. Do not click links or open 
attachments unless you recognize the sender and know the content is safe.

I put quotes around jamming, because it isn't technically.
We are seeing an SSID named 'ACCESS DENIED' on 2.4GHz channel 4, with a 40MHz 
width and channel 8 extension.
The signal is not high enough to interfere with most clients, but for some of 
our meshed access points, the signal level is fairly close to the signal 
available from the mesh's host access point.

Is this a common thing?  Have others seen the same on their campus, and if so, 
what are the policies and practices that you follow?

I know the signal is coming from off-campus, but I don't have assurance that it 
is malicious intent or that it is intended to disrupt our campus network.

John Rodkey
Director of Servers and Networks
Westmont College

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