how to locate a Wifi Invalid channel interferer?

[pmovrich1]

Hello,

I just recently enabled some additional e-mail alerting from my cisco WLC. Since enabling them i've been receiving constant alerts about a  interferer 'WiFi Invalid Channel' being detected and then clearing.

the full message is

Security-risk Interferer 'WiFi Invalid Channel' is detected by 'WAP'.Interferer severity is '2'.

i've done some research on what this is, which from my understanding is either a non-wifi device or wifi device that is transmitting just off center of a standard wifi channel.
However, i could not find anything on how to track down or locate these devices. any insight on how to do this would be appreciated.

Thanks

[Scott Fella]

What is happening is that the ap has detected "something" using a non standard channel.  For example, maybe channel 12 on the 2.4ghz.  Take a look at the RF with a spectrum and see if you see non standard channels being used. 

-Scott

[pmovrich1]

We have a few blue tooth devices in that area, i'm wondering if that AP is picking it up as  the interferer.

any idea if that is possible?

[Scott Fella]

Bluetooth would be detected as Bluetooth to be honest. I don't think that is the case. 

-Scott