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  1. Thread Author  Thread Author    #1  

    Default Chromecast causing wifi issues?

    Good afternoon everyone,

    I've had a Chromecast for about a week now and I am a big fan. I am having a bit of a problem I was wondering if anyone else is having. My wifi is having a hard time playing nice with my Chromecast. I'll be watching something on my Chromecast that I started with my Galaxy Nexus or Nexus 7 and the wifi will drop out every 5 minutes or so. It doesn't seem to drop out if I don't have the phone or tablet on, but if I am using both the Chromecast and a device the wifi seems to have trouble staying on.

    Anyone else have this happen? Any idea of what it could be?
  2. #2  
    T Android's Avatar
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    Default Re: Chromecast causing wifi issues?

    How good is the signal of your router? If it's far away from the cc and some devices are connected, that can cause you to lose the connectivity.
  3. Thread Author  Thread Author    #3  

    Default Re: Chromecast causing wifi issues?

    I've had it happen in my living room and the router is only removed from the devices by 5 feet or so.
  4. #4  

    Default Re: Chromecast causing wifi issues?

    My phone thinks Chromecast is a wifi network. I installed a repeater yesterday because my signal wasn't strong enough by the TV. Now I'm sitting two feet away from my modem, but my phone keeps connecting to the CC, and won't stay connected to the wireless. The signal is fine, this computer is on wireless. The CC is showing as only one bar on the phone. But wifi keeps going to disconnected, half the time my wireless isn't even in the list. Sometimes it is full strength, other times weak. My Nook Color shows full strength wireless. Phone is a rooted ZTE Merit.

    OK, remembered we had a stock ZTE Merit so checked that. I'm seeing the same wifi issues. That one doesn't have the CC app installed (no room).

    So, is Chromecast messing with the wireless, or is the new router/repeater doing it? And why does it only affect the phones?

    Took the Nook upstairs by the CC and repeater, it wasn't finding much of a signal. Unplugged the repeater, waited, plugged it back in. Nook and Merit showed full connection. Came back downstairs, Merit is still connected but after awhile went back to one to two bars. My CC is still in the Merit's wifi networks list, but showing as out of range. It does not show in the Nook's list. The Nook has the CC app but I haven't used it yet.

    Router is Asus RT-N12 with switch set to repeater.
    Last edited by jrstark; 08-08-2013 at 12:36 AM.
  5. #5  

    Default Re: Chromecast causing wifi issues?

    Yes it is happening to me as well I've never had wifi connectivity issues but since I started using the chromecast my wifi connection keeps on dropping
  6. #6  

    Default Re: Chromecast causing wifi issues?

    Quote Originally Posted by jrstark View Post
    My phone thinks Chromecast is a wifi network. I installed a repeater yesterday because my signal wasn't strong enough by the TV. Now I'm sitting two feet away from my modem, but my phone keeps connecting to the CC, and won't stay connected to the wireless. The signal is fine, this computer is on wireless. The CC is showing as only one bar on the phone. But wifi keeps going to disconnected, half the time my wireless isn't even in the list. Sometimes it is full strength, other times weak. My Nook Color shows full strength wireless. Phone is a rooted ZTE Merit.

    OK, remembered we had a stock ZTE Merit so checked that. I'm seeing the same wifi issues. That one doesn't have the CC app installed (no room).

    So, is Chromecast messing with the wireless, or is the new router/repeater doing it? And why does it only affect the phones?

    Took the Nook upstairs by the CC and repeater, it wasn't finding much of a signal. Unplugged the repeater, waited, plugged it back in. Nook and Merit showed full connection. Came back downstairs, Merit is still connected but after awhile went back to one to two bars. My CC is still in the Merit's wifi networks list, but showing as out of range. It does not show in the Nook's list. The Nook has the CC app but I haven't used it yet.

    Router is Asus RT-N12 with switch set to repeater.
    FYI when you use a repeater, your wifi bandwidth will get cut anywhere from 50-75 percent of its throughput.

    The only way to avoid this only works under these circumstances.

    Your router needs to be a dual band router.
    Your repeater/extender needs to be a dual band repeater.

    You hook up either the 5ghz or 2.4ghz band to the repeater. Then for example if you hook the 2.4ghz band to the router, you use the 5ghz band to connect your devices too.

    Otherwise I wouldn't recommend extenders/repeaters for these situations.

    A better option but this is based on your house circuitry, is to use the ethernet through electricity in a wall socket (don't plug into a surge bar) and have it run to your upstairs. Then hook up the repeater if it can turn into an access point or buy an access point through a ethernet cable.

    The problem with this solution is that no matter what these companies tell you about how these devices have improved, if the outlets aren't part of the same circuit, they won't see each other.
  7. #7  

    Default Re: Chromecast causing wifi issues?

    I'm having the same issue. If I use Chromecast on my tv, I can't get wifi anywhere in the house for days
  8. #8  
    Guyzer's Avatar

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    Default Re: Chromecast causing wifi issues?

    I have had the same thing happen. Afterwards it gave intermittent Internet access

    Posted via Android Central App
  9. #9  

    Default Re: Chromecast causing wifi issues?

    I've had issues and looked up inside of my router console to see what was up and found there are a bunch of transmit issues. I've tried updating my DD-WRT(router firmware) and that hasn't worked.
    I am trying to adjust my ACK Timing to 0 to see if that works. Trying this because I have checked around and other people have had luck with this.

    Also found this https://support.google.com/chromecas..._topic=3447927
  10. Thread Author  Thread Author    #10  

    Default Re: Chromecast causing wifi issues?

    Anyone found a good resolution for this issue?

    Mine still does this. Anyone found a way that reliably fixes this issue?
  11. #11  

    Default Re: Chromecast causing wifi issues?

    add one more guy having wifi issues.

    been having major lag. reset my router many times....even re-installed windows 7 several times, just hoping. then i saw this thread, pulled the chromecast, and it seems i am good to go.

    anyone want to buy a chromecast? it's not ready for prime time. into a drawer it goes.

    i understand the potential for this device. yet, my roku player does this stuff far better. i can cast local media from my laptop and my phone. just can't cast a tab. no big deal at this point.
    Last edited by ljxdaly; 10-31-2013 at 12:07 PM.
  12. #12  

    Default Re: Chromecast causing wifi issues?

    I picked up a WD wifi extender when they were on sale at Office Depot. That seems to have solved all my problems. I did have one issue getting wifi back when we lost power for about an hour once, but unplugged everything and didn't plug Chromecast and the extender back in until I had the computers working. Everything is 2.4ghz, I've had no problems, even casting from the wired desktop to Chromecast on another floor.
  13. #13  

    Default Re: Chromecast causing wifi issues?

    I noticed this while streaming Netflix from my laptop. During playback, my laptop loses it's Internet connection. Chromecast continues to play. No matter what I do with my laptop after that, it will not connect to the Wireless, although it shows that it is, with the no internet access warning. Once I stop Chromecast via another device or turning off that HDMI port, then the wifi returns to my laptop. I have noted no issues using my GS3 or Xoom
  14. #14  

    Default Re: Chromecast causing wifi issues?

    I have the exact same issue. all my devices kept trying to connect to it instead of the router in the same room. buh bye chromecast
  15. #15  

    Default Re: Chromecast causing wifi issues?

    50 Mbps here .. hooked up chromecast .. and .. even *without* active casting, speed is cut to half 50Mbps or worse .. using Arris router/wifi/modem on comcast .. like to point out here .. I think it's very poor that there is no Google support phone number or email for chromecast, especially considering the big bucks they are making from this and gobs of other cash cows
  16. #16  

    Default Re: Chromecast causing wifi issues?

    I'm far from an expert but once the chromecast is properly paired and set up I believe it should not send out a SSID identifying the device and allowing coinnection to it. On my device the only time I see the Chromecast listed as a potential wifi Connection for my devices is when the CC has lost connection with the Wi-Fi router. I believe this is done on puropse to allow the chromecast to be paired in multiple locations.

    I would suggest those with problems reset the CC to Factory settings, then pair with the CC from the chromecast app. Keep in mind the Chromecast can only connect to a 2.4 ghz wi-fi signal and all wireless controlling devices must be on the same 2.4ghz connection.

    so for example If my MOTO X is on the 5ghz band of my Dual band router and my chromecast is on the 2.4Ghz band My Moto X will not be able to control the Crhomecast. My MOTO X must be on the 2.4 Ghz.
    I think your skills are improving.
    Moto X
    Nexus10 2012
    2 Nexus 7 2013s [My Children's]
  17. #17  

    Default Re: Chromecast causing wifi issues?

    Quote Originally Posted by Devlyn16 View Post
    I'm far from an expert but once the chromecast is properly paired and set up I believe it should not send out a SSID identifying the d yevice and allowing coinnection to it. On my device the only time I see the Chromecast listed as a potential wifi Connection for my devices is when the CC has lost connection with the Wi-Fi router. I believe this is done on puropse to allow the chromecast to be paired in multiple locations.

    I would suggest those with problems reset the CC to Factory settiualngs, then pair with the CC from the chromecast app. Keep in mind the Chromecast can only connect to a 2.4 ghz wi-fi signal and all wireless controlling devices must be on the same 2.4ghz connection.

    so for example If my MOTO X is on the 5ghz band of my Dual band router and my chromecast is on the 2.4Ghz band My Moto X will not be able to control the Crhomecast. My MOTO X must be on the 2.4 Ghz.
    No, as long as the router and both devices are on the same subnet it works fine. My wired desktop, my 2.4GHz smartphone and 5GHz tablet all talk to the Chromecast just fine. All of them go thru my Dlink DIR-825 dual band router.


    Sent from my Xoom using Tapatalk 4
  18. #18  

    Default Re: Chromecast causing wifi issues?

    Quote Originally Posted by donc13 View Post
    No, as long as the router and both devices are on the same subnet it works fine. My wired desktop, my 2.4GHz smartphone and 5GHz tablet all talk to the Chromecast just fine. All of them go thru my Dlink DIR-825 dual band router.


    Sent from my Xoom using Tapatalk 4
    Really? I would swear I read early on that the casting WiFi device must be on the same 2.4 ghz network as the ChromeCast
    I think your skills are improving.
    Moto X
    Nexus10 2012
    2 Nexus 7 2013s [My Children's]
  19. #19  

    Default Re: Chromecast causing wifi issues?

    Quote Originally Posted by donc13 View Post
    No, as long as the router and both devices are on the same subnet it works fine. My wired desktop, my 2.4GHz smartphone and 5GHz tablet all talk to the Chromecast just fine. All of them go thru my Dlink DIR-825 dual band router.


    Sent from my Xoom using Tapatalk 4
    Quote Originally Posted by Devlyn16 View Post
    Really? I would swear I read early on that the casting WiFi device must be on the same 2.4 ghz network as the ChromeCast
    I have a wifi router that I no longer need as a router so I have it configured as a bridge to provide a close wifi signal to my Chromecast, with a separate SSID so only the Chromecast attempts to connect with it. All other devices, wired or wireless, connect with my main router and they can see and control the Chromecast because they are all on the same subnet, just different wifi hotspots. The one caveat is that when I first set up the Chromecast with the Chromecast app, the device the app is installed on must be connected to the same wifi hotspot as the one I'm setting the Chromecast up on, once the Chromecast is set up I disconnect the controlling device from that hotspot and reconnected on the main router's hotspot with a different SSID and it can see and cast to the Chromecast just fine.

    BTW, someone commented earlier in this thread about the use of ethernet over powerline not working unless the two powerline adapters are on the same circuit. I am using powerline adapters on separate circuits on different floors in my home to provide a network connection to the wifi bridge my Chromecast is connected to. Having the powerline adapters on different circuits does reduce the throughput to about 20Mbps, which is plenty for the Chromecast but is the reason I only allow the Chromecast to connect via that hotspot normally. In addition to the Chromecast connected wirelessly, I also have my Roku3, a Slingbox, and a BD player connected via ethernet over that same powerline adaptor, but since I'm only using one device at a time it works well.
    Last edited by Groundhound; 11-25-2013 at 08:56 AM.
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  20. #20  

    Default Re: Chromecast causing wifi issues?

    Quote Originally Posted by Groundhound View Post
    I have a wifi router that I no longer need as a router so I have it configured as a bridge to provide a close wifi signal to my Chromecast, with a separate SSID so only the Chromecast attempts to connect with it. All other devices, wired or wireless, connect with my main router and they can see and control the Chromecast because they are all on the same subnet, just different wifi hotspots. The one caveat is that when I first set up the Chromecast with the Chromecast app, the device the app is installed on must be connected to the same wifi hotspot as the one I'm setting the Chromecast up on, once the Chromecast is set up I disconnect the controlling device from that hotspot and reconnected on the main router's hotspot with a different SSID and it can see and cast to the Chromecast just fine.

    BTW, someone commented earlier in this thread about the use of ethernet over powerline not working unless the two powerline adapters are on the same circuit. I am using powerline adapters on separate circuits on different floors in my home to provide a network connection to the wifi bridge my Chromecast is connected to. Having the powerline adapters on different circuits does reduce the throughput to about 20Mbps, which is plenty for the Chromecast but is the reason I only allow the Chromecast to connect via that hotspot normally. In addition to the Chromecast connected wirelessly, I also have my Roku3, a Slingbox, and a BD player connected via ethernet over that same powerline adaptor, but since I'm only using one device at a time it works well.
    Interesting stuff. This will be useful next year when I move my Linksys Wi-fi router into my Living room freeing up my bridge to do as you described
    I think your skills are improving.
    Moto X
    Nexus10 2012
    2 Nexus 7 2013s [My Children's]
  21. #21  

    Default Re: Chromecast causing wifi issues?

    I have had the same problem of chromecast dropping off the network. I notice the problem the most when cast from Real Player Cloud. It is interesting that when the chromecast drops, the video is still streaming on my laptop that I cast from. If the problem was with anything other than the dongle, I would loose the signal on my laptop as well. So far I have: 1)changed USB cable; 2)changed the power from USB to direct connect to a electric outlet; 3)connected the dongle both directly to the HDMI port and with the extender; 4)checked signal strength (which is 100% at -49dBm); 5) the chromecast dongle is only 18 feet from the modem; 6) checked that I am the only one using the channel set on my modem within my neighborhood. I did get a little improvement when I changed the USB cable and again when I changed to direct power. But the problem still persists. Sometimes it will cast for 10 minutes then drop, sometimes it casts 20 or 25 minutes before dropping. Usually after about 10 minutes the chromecast reconnects to the network without me doing anything. Very frustrated.
  22. #22  

    Default Re: Chromecast causing wifi issues?

    I have the same or similar issue: my dongle will intermittently and frequently go into Access Point mode, even while it's playing buffered content. When it does this, it assumes the SSID of my WiFi network - making it look like a 2nd access point. If I make the mistake of leaving the thing powered, it's just a matter of a couple hours before one of my kids or my wife comes to me asking if "the Internet is down".

    The first time we saw the issue was about 3 weeks ago, the last week of March, and when it manifested, I broke out a signal analyzer only to discover a 2nd "access point" on my network. This "rogue AP" was close enough and strong enough that it matched or beat my own high-power AP in signal strength. The connection was open (no encryption) and was running a DHCP server. It provided no DNS nor gateway services; it was a dead-end connection. The AP was running on the same channel as my official AP, was assigned 192.168.255.249, and had a MAC address of FA:8F:CA:65:15:06 (which, incidentally, matches no known vendors in the 4 or 5 databases I checked). Some searching pretty quickly showed the device to be my Chromecast dongle.

    I've had the dongle since Christmas, and I used to leave it powered 7 x 24. When the problem first started, it was only occasional, maybe just once or twice a week, and we dealt with it by power-cycling the dongle and our real access point. The problem has increased in regularity, however, and it now happens just an hour or two after powering the dongle. Starting last week, we no longer leave it powered and only use it when we want to cast something.

    /sigh
    - Sprint / Galaxy Note 2 user
    - Galaxy Note 10.1 user
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  23. #23  

    Default Re: Chromecast causing wifi issues?

    With far less thoroughness of testing, I think I am experiencing the same as you. The problem has definitely increased in frequency since around August or so, and it results in bringing down my entire network.

    I'm going to try to disconnect it for a while and see if that solves things.
  24. #24  

    Default Re: Chromecast causing wifi issues?

    Quote Originally Posted by jeffro77 View Post
    I have the same or similar issue: my dongle will intermittently and frequently go into Access Point mode, even while it's playing buffered content. When it does this, it assumes the SSID of my WiFi network - making it look like a 2nd access point. If I make the mistake of leaving the thing powered, it's just a matter of a couple hours before one of my kids or my wife comes to me asking if "the Internet is down".

    The first time we saw the issue was about 3 weeks ago, the last week of March, and when it manifested, I broke out a signal analyzer only to discover a 2nd "access point" on my network. This "rogue AP" was close enough and strong enough that it matched or beat my own high-power AP in signal strength. The connection was open (no encryption) and was running a DHCP server. It provided no DNS nor gateway services; it was a dead-end connection. The AP was running on the same channel as my official AP, was assigned 192.168.255.249, and had a MAC address of FA:8F:CA:65:15:06 (which, incidentally, matches no known vendors in the 4 or 5 databases I checked). Some searching pretty quickly showed the device to be my Chromecast dongle.

    I've had the dongle since Christmas, and I used to leave it powered 7 x 24. When the problem first started, it was only occasional, maybe just once or twice a week, and we dealt with it by power-cycling the dongle and our real access point. The problem has increased in regularity, however, and it now happens just an hour or two after powering the dongle. Starting last week, we no longer leave it powered and only use it when we want to cast something.

    /sigh
    That is exactly what just happened to me. My chromecast suddenly showed up as an AP. Rebooted it...seems ok now, we'll see how long that lasts.



    Sent from my Note 3 via Tapatalk
  25. #25  
    rjt246's Avatar

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    Default Re: Chromecast causing wifi issues?

    Im having the same problem as most of you all! When the CC shows up as a AP, my wifi network goes down.
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