We too have seen this issue in our conference center and other functions that 
go on around campus. As for policing them, we have in the past tried to shut 
them down and had good luck in doing so. Once everyone in the room turned off 
their Myfi's they started working again on the campus wireless network. The 
down fall is that once you cleared the room and all is good a new group of 
people lets out and more Myfi's show up. It's fighting a losing battle is you 
ask me. Best we can do is get the person or person's running the event and 
educate them about the possible situations before the event takes place. With 
that said, I'm also curious how others handle this issue during their large 
venues. '

Thanks,


Mark G. Anthony
Network Administrator
Information Technology Services
The Florida State University
Email [email protected]<mailto:[email protected]>



From: The EDUCAUSE Wireless Issues Constituent Group Listserv 
[mailto:[email protected]] On Behalf Of John Kaftan
Sent: Wednesday, January 8, 2014 10:34 PM
To: [email protected]
Subject: [WIRELESS-LAN] Myfi

I got my hands on someone's Verizon Myfi today and it was set to Auto choose 
what channel to broadcast its SSID on.  The crazy thing chose channel 2!  It 
was putting out a pretty strong signal too.  I was seeing a -50 dB from 10 feet 
away.

To anyone else connected to channel 1 or 6 a signal on channel 2 is going to be 
noise, i.e. interference.

When doing scans I have seen this before.  I have seen these things on every 
channel but 1,6,11 now that I think about it.

I logged into its web interface and was able to force it to use channel 1.  
There is also an easy to use interface right on the device where I could chose 
the channel.

I'm just alarmed that these things choose non-standandard channels.  If 3-4  or 
more of these things show up in room hosting a conference we may have a real 
problem.  Its hard enough to put 120 laptops in a room and get them all on and 
happy let alone having these things out there.

I'm curious, does anybody police these devices at high density events or make 
an announcement requesting folks turn them off? I can't imagine these Myfis 
perform well in high density situations due to their competing for bandwidth on 
both 2.4 and cellular bands.

Thanks

--
John Kaftan
IT Infrastructure Manager
Utica College

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