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11/28/15
Original Poster
Jan Roose

Chromecast causing interference in the Wifi

I have connected my Chromecast to a Wifi network.
Using inSIDDer or Wifi-Analyser app I an see an open, nameless wifi network on the same channel (Co-Channel) as the channel were the chromecast is connected to. This is an open network with a strange MAC address (FA:8F:CA:36:7D:46).

When I turn off the Chromecast the nameless wifi disappears, turning it on again the network comes up again.
When I change the wifi on the chromecast to another Wifi network (for example from 5Ghz to 2.4Ghz) then the nameless Wifi changes to the same channel as the Wifi the chromecast is connected to.

This network on the same channel as my Wifi is as strong or even stronger than the original Wifi network and I expect it is causing interference on my standard Wifi network.
Why is this Wifi network needed and how can I turn it off?


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All Replies (6)
11/29/15
Expert - Community Specialist
EricTsai
Hello there, Jan.

Thanks for posting. The Chromecast acts as a transmitter between your HDTV and your casting device, like a cable box or an antenna. I think the network you're referring to is the MAC address and it's working as intended. Are you experiencing any significant changes to your Wi-Fi network? Let's start here.
11/30/15
Original Poster
Jan Roose
Hi Eric,

I dont understand what you are saying: "The Chromecast acts as a transmitter between your HDTV and your casting device," my casting device is a tablet, the tablet is linked to the same wifi network as the chromecast. And the chromecast (the newest type) is connected thru HDMI with my TV. I would expect the chromecast is not transmitting anything in the air as an own wifi since it is already connected to a wifi.

12/1/15
Expert - Community Specialist
EricTsai
Hi there,

What I meant was Chromecast acts like a communication between your casting device and HDTV, like a remote control. Also, do you mind clarifying your issue with me once more? Thanks. 
12/1/15
Expert - Gold
James-M
Jan,

Do you have a wireless device (e.g. home alarm system, digital phone, baby monitor, printer, microwave, mouse, Android watch, etc) on your network?

Do you have full control of your router settings? If not, do you login into your router? If login, Chromecast does not support a Captive Portal.


12/8/15
Original Poster
Jan Roose
I found a solution in another thread: https://productforums.google.com/forum/#!topic/chromecast/mRQOJNLNjCc

I used the Chromcast app to disable the Guest mode. now the extra SSID is gone.

12/8/15
Expert - Community Specialist
EricTsai
Thanks for posting your solution, hope you'll enjoy your Chromecast. : )
 
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