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Chrome only sees Cast when wired to Router

Hello everyone.
I've been trying to cast from my laptop but I don't see it (No Cast Devices found). I'm able to cast effortlessly from my Android device though.
Now, after poking here and there I tried connecting my laptop directly to the router and then Chrome detected my cast device.
Any idea of what it could be? This may be the wrong forum to post this but not even Google Support has figured out what's wrong.
Thanks!

I have the same problem, obviously I don't know how to fix it

Do you have a dual band router that is broadcasting 2.4 and 5 ghz signals? I've read of people having issues when the Chromecast uses 2.4 and your computer is trying to connect via the 5ghz network. Personally I have iPads and my Android phone connecting over 5ghz while my Chromecast is on 2.4 and don't have any problems. But perhaps it is a router issue. I use a WAP running DD-WRT, so it is better than most OEM routers out there.

sic0048 said:
Do you have a dual band router that is broadcasting 2.4 and 5 ghz signals? I've read of people having issues when the Chromecast uses 2.4 and your computer is trying to connect via the 5ghz network. Personally I have iPads and my Android phone connecting over 5ghz while my Chromecast is on 2.4 and don't have any problems. But perhaps it is a router issue. I use a WAP running DD-WRT, so it is better than most OEM routers out there.
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There should not be an issue with connecting on different bands unless you segregate the 5ghz band on your router. Most routers are not setup to do that but if you have made changes, it is possible.

I checked the AP isolation thing before posting. So it wasnt that. I also flashed DD-WRT on it just to make sure. Same result.
We all on the same network/SSID.
Google cant figure out why Chrone only sees it only when wired im still waiting for them to come back with a workaround. If they do ill post it.

mogul420 said:
I checked the AP isolation thing before posting. So it wasnt that. I also flashed DD-WRT on it just to make sure. Same result.
We all on the same network/SSID.
Google cant figure out why Chrone only sees it only when wired im still waiting for them to come back with a workaround. If they do ill post it.
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Click to collapse
wild guess... if its not AP isolation maybe your wifi card has a firewall enabled and your Ethernet port doesn't?

Ashcunak said:
wild guess... if its not AP isolation maybe your wifi card has a firewall enabled and your Ethernet port doesn't?
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Click to collapse
checked. firewall is off.
weirder, the Chromecast app detects it, but my browser doesnt.
Code:

mogul420 said:
checked. firewall is off.
weirder, the Chromecast app detects it, but my browser doesnt.
Click to expand...
Click to collapse
I'm on the same boat with a "similar" problem. I have a Netgear N900 dual band router, but the issue persists while my main laptop (Win7) is connected via WiFi to either band (2.4GHz or 5.0GHz) or if I connect it directly to the router via Ethernet wire. Using the Chromecast app from the same laptop works without a hitch. I can also ping the Chromecast IP address without a problem. I have rebooted several times, uninstalled and re-installed Chrome and the Google Cast extension, but it makes no difference. I believe that the plugin is conflicting with "something" in this specific laptop. The issue is not with the LAN. All devices are on the same Network segment and respond to pings. The Google Cast extension works fine from two other laptops running Win7 with a similar setup, running the same version of the Chrome browser and Google Cast. I can also cast from my Android mobile devices (Nexus 7 & SGS3) using youtube. Suggestions anyone?
UPDATE:
The conflict was being caused by an active "virtual" network adapter. Specifically, the Leaf Network adapter that was installed with Netgear's ReadyShare Cloud. I guess this adapter works as a VPN to connect to the ReadyShare Cloud. I disabled this adapter and the Chromecast discovery worked. Apparently, the Chrome Cast extension is not smart enough to avoid virtual (VPN) adapters and link with the Primary (physical) wired/wireless adapter. At minimum, the extension should have an option to select the adapter to use. I don't user ReadyShare that frequently so having the adapter disabled does not bother me much.

The new update rolling out today is suppose to improve discovery so perhaps it will fix some of these issues.

bozzykid said:
The new update rolling out today is suppose to improve discovery so perhaps it will fix some of these issues.
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Thanks for the heads up. Is this a firmware update for the dongle or an updated Chrome Cast extension? Regardless, is there a a place where I can read about this update or a way for me to manually download it?
Btw, I found the conflict with my setup... I have updated my previous post.

Got the Chromecast dongle "firmware" OTA update today. It went from release 12072 (shipped) to release 12840.. I don't think this is a "new" update that's supposed to be rolling out today.. If discovery was supposed to be improved with this release, it did not fix the issue with my ReadyShare Cloud virtual VPN adapters. Once I enable the Leaf Network adapter the device disappears from the Chrome Cast pull down. After reading about it a bit more, it appears that this 12840 OTA update patches the exploit used to get root. Oh well... does anyone know if there are any new features or what else is fixed with the 12840 release?

WiFi Network dependency

Hi,
Do I need a standalone WiFi network available to cast from my device to the TV or not?
Will I be able to go to friend and cast something from my tablet to his TV even thou he does not have WiFi at home?

Yes, you need a WiFi network and an Internet connection accessible from that.
If you just have your tablet and Chromecast, the Chromecast won't be able to find a network, as your tablet is not a WiFi access point.
I don't know of anyone who has tried setting up their phone/tablet as a WiFi hot spot and connecting Chromecast to that. I'm not certain how Android hotspot NATs and/or isolates clients.
Best to just bring a small wireless router. There are a number of "travel router" devices that have an internal battery or can be powered via USB.
Connect it to your friend's Internet connection, then off you go.
If the goal is just to show stuff from your tablet on your friend's TV, it might be easier/cheaper to just go hardwired with an HDMI or VGA output adapter for your tablet, if it has that option.

bhiga said:
I don't know of anyone who has tried setting up their phone/tablet as a WiFi hot spot and connecting Chromecast to that. I'm not certain how Android hotspot NATs and/or isolates clients.
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ooOOoo interesting idea.
I'll have to try that this weekend.

-Lawless said:
ooOOoo interesting idea.
I'll have to try that this weekend.
Click to expand...
Click to collapse
Remember that Chromecast still needs a connection to the Internet in order to negotiate the application launch.

Thus the Hotspot. Just might work.

My friend is technologically challenged
He's got no internet at home apart from out mobile phones which we can use for internet at his place...
So, can I use my phone's Wifi hotspot to and use my phone/tablet to stream the web to his TV?
How does the Chrome cast work? Is the tablet interphase only used to set up a link between the dongle and the wifi sender/ router?

For native apps, Chromecast works more like a your phone/tablet in the fact that it pulls the requested data and plays on its own. The video isn't going from the Internet to your phone/tablet, then from your phone/tablet to the Chromecast, your phone/tablet "hands off" the request to the Chromecast and the video goes directly from the Internet to the Chromecast. The control via tablet/phone is done through a "side" channel that Chromecast listens on, which also lets your phone/tablet know what Chromecast is doing.
For example, YouTube...
You open YouTube on your phone/tablet
You find a video
You cast it to your Chromecast
Chromecast "phones home" to Google to figure out how to handle the request (I think)
Google replies with "Use the YouTube app"
Chromecast runs its YouTube app to open the link and starts playing
While it's playing on, Chromecast sends its status to your phone/tablet and listens for control commands.
So... Using your phone's WiFi Hotspot for the Chromecast might (should?) work, and what'll happen is Chromecast will connect to your phone via WiFi, and your phone will connect to Internet via mobile network.
In this case the streaming performance will be limited by both your phone's mobile data speed as well as the WiFi connection speed/stability between your phone and the Chromecast.
While I don't necessarily think this will provide a good viewing experience, it's an interesting experiment.
If you have a rooted Chromecast with Kyocast, you should be able to use the un-timebombed AllCast/AirCast to stream video stored on your phone to the Chromecast. It'll still use mobile data to "phone home" (to the Kyocast server) to figure out how to deal with the request, which will launch the AllCast/AirCast magic. From there I believe the video data will stream directly from your phone to the Chromecast, not using your mobile data... I think.

bhiga said:
For native apps, Chromecast works more like a your phone/tablet in the fact that it pulls the requested data and plays on its own. The video isn't going from the Internet to your phone/tablet, then from your phone/tablet to the Chromecast, your phone/tablet "hands off" the request to the Chromecast and the video goes directly from the Internet to the Chromecast. The control via tablet/phone is done through a "side" channel that Chromecast listens on, which also lets your phone/tablet know what Chromecast is doing.
For example, YouTube...
You open YouTube on your phone/tablet
You find a video
You cast it to your Chromecast
Chromecast "phones home" to Google to figure out how to handle the request (I think)
Google replies with "Use the YouTube app"
Chromecast runs its YouTube app to open the link and starts playing
While it's playing on, Chromecast sends its status to your phone/tablet and listens for control commands.
So... Using your phone's WiFi Hotspot for the Chromecast might (should?) work, and what'll happen is Chromecast will connect to your phone via WiFi, and your phone will connect to Internet via mobile network.
In this case the streaming performance will be limited by both your phone's mobile data speed as well as the WiFi connection speed/stability between your phone and the Chromecast.
While I don't necessarily think this will provide a good viewing experience, it's an interesting experiment.
If you have a rooted Chromecast with Kyocast, you should be able to use the un-timebombed AllCast/AirCast to stream video stored on your phone to the Chromecast. It'll still use mobile data to "phone home" (to the Kyocast server) to figure out how to deal with the request, which will launch the AllCast/AirCast magic. From there I believe the video data will stream directly from your phone to the Chromecast, not using your mobile data... I think.
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Thanx so much for all this data. Not sure whether I wanna try the rooting now. Will wait to see what Google has in store in the next month. It's rooting the dongle easy? Rooting phones comes naturally by now...
Sent from my ASUS Transformer Pad TF700T using Tapatalk 4

It's really easy with Flashcast but if your Chromecast has been connected to the Internet for more than a few minutes then it has probably auto updated to a non-root able state.

-Lawless said:
ooOOoo interesting idea.
I'll have to try that this weekend.
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Click to collapse
I've been doing that for weeks now, if you access 3G (4G) from your device then set it as an access point, and connect to its network with CC. Then all you need is something else to connect to Netflix and the same WiFi access point (a tablet for example or another phone) and you can send it to CC.
The other device is necessary because the Netflix app doesn't show the CC share icon when connected to 3G, whereas on the other device because it's connected to 3G through a mobile WiFi access point it does.
You could use a MiFi instead.
I use it in hotels this way with the CC plugged into the hotel TV (if I'm lucky)

Streaming from phone that is also the Chromecast's hotspot/connection

So, at work I don't have internet, but I have my phone, and I have a chromecast on the tv. I use my phones hotspot all the time for my ipad and laptop with no problem. I have my chromecast setup on my Nexus 5's hotspot as it's internet connection. It works fine if I use my ipad to push content to the chromecast, but on the phone, all apps hide the chromecast option.
So basically the chromecast is invisible to the Nexus 5. I guess because the Nexus 5 is technically the Chromecast's router, and not a fellow client. There are a lot more apps that have chromecast support, so to get this working from my phone would be great. Is there a way?

I use my phone hotspot and play videos all the time. You can use video caster and chrome beta. I tried Netflix and Youtube but didn't have any luck.
Nexus5 Exp. 5.5 for N4

I would think that putting the phone into tether mode changes the way the networking works and would prevent it from making direct outgoing connections to anything other than the Internet.
I could be dead wrong however.

The problem with Hotspot/tether is that the Chomecast can't see the phone because of AP isolation built into Android. Chromecast or any "client' connected to the hotspot can see the Internet as that is what hotspot is for; connecting clients to the Internet... If you connect a second client to the hotspot I believe it can see an control Chromecast..

rkirmeier said:
The problem with Hotspot/tether is that the Chomecast can't see the phone because of AP isolation built into Android. Chromecast or any "client' connected to the hotspot can see the Internet as that is what hotspot is for; connecting clients to the Internet... If you connect a second client to the hotspot I believe it can see an control Chromecast..
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Right.... basically the phone is not on the Tether IP subnet and therefore can not communicate with any device that has a Tether IP address. So Android itself has no access to this subnet it is just internet connection sharing with that subnet.
Not exactly a perfect technical description of what is going on but in the ballpark.
Only the App that is doing the tethering is actually seeing the Tether IP the rest of the phone has no access to it.

Put the phone into hotspot mode, use your tablet to navigate and play. I've done it
Sent from my DROID RAZR HD using Tapatalk

ArkAngel06 said:
So, at work I don't have internet, but I have my phone, and I have a chromecast on the tv. I use my phones hotspot all the time for my ipad and laptop with no problem. I have my chromecast setup on my Nexus 5's hotspot as it's internet connection. It works fine if I use my ipad to push content to the chromecast, but on the phone, all apps hide the chromecast option.
So basically the chromecast is invisible to the Nexus 5. I guess because the Nexus 5 is technically the Chromecast's router, and not a fellow client. There are a lot more apps that have chromecast support, so to get this working from my phone would be great. Is there a way?
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Click to collapse
I've been able to use AVIA in the configuration you're referring to.

Direct casting.

I looked and havent found an answer. If it has been answered sorry for asking again. I have a Chromecast and a Galaxy S4. I have a wifi router but no internet connection. I also have a S4 active that is not connected to any service. I have unlimited 4g lte and was wondering if it is possible to cast netflix and hulu directly from my phone to the chromecast. Thank you!

If you set up your phone as a wifi hotspot and connect the Chromecast to that then you should be able to cast that way.

I tried that but the chromecast isnt seeing the network.

Doesn't ALLCAST do this? I am pretty sure I had mine setup to do this.

I will download it mow and test it

Allcast works inso far as streaming bideos I have downloaded. But it wont play netflix or hulu. For the chromecast to work I have to turn on my wifi, but because I do not have internet netflix won't load. When I turn off my wifi netflix loads

Cast without wifi or internet?

Trying to set up something in my camper so that I can watch downloaded movies or shows from my phones. I have a Note 3 with android 5.0.2 and miracast seems to be broken? When the Note 3 had 4.4 it worked fine and I used a Sony dvd player that it worked with just fine. It "sees" the player but won't cast to it.
I have a Google Pixel XL that does not see the dvd player for some reason. I brought a wifi router into the camper and tried to set up a chromecast (Gen 1). I can get it set up but then neither device, when connected to same wifi, see the device so that I can cast to it. I am going to grab a Gen 2 model from home and see if this will work.
Is there a simpler way to make this work? It was so easy just using miracast and now this has turned into a massive headache.

If you have the Stock FW on the CC, please ensure, that guest mode is enabled (via Google home). In this case the CC provided an own Wifi net if needed.

Mad07 said:
If you have the Stock FW on the CC, please ensure, that guest mode is enabled (via Google home). In this case the CC provided an own Wifi net if needed.
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Click to collapse
I've never been able to get the guest mode to work. It seems like no matter what the chromecast still needs an actual internet connection, even if only casting a movie/picture right from device.
So far what works for me but it's annoying. I have my actual Verizon phone turned on as hotspot, Set up the chromecast to connect to hotspot. I leave it up and running. My Note 3 has my movies on it so I connect to same hotspot and cast using Allcast app...I think. That's the only app that even seems to find the chromecast. Yes I have Google Home installed on both devices. If I turn off the hotspot Chromecast stops working. Neither device finds the chromecast after that unless I turn hotspot back on. Yes guest mode is turned on. A pin is never displayed but since devices don't see it it won't help anyway.
I had a spare wifi router and did the same test. Still need an actual data connection. If no data connection the devices do not see the Chromecast.
Technology is really frustrating at times. Miracast worked just fine until Google didn't like it and made the Chromecast. The Note 3 is old and close to being dead so I am not buying a MHL adapter for it nor will I buy a new tv that has something built in that does not seems to work either. Many other camping people are starting to run into this issue as well.

if you go in Google Home under your device, Settings, there is a possibility to switch the guest mode on. This means the CC works like a hot spot. Its written also on the screen. Every device, which is not in your network, could get an access. I don't know, at which time the guest mode will be disabled automatically. Maybe at this time, if you stream something over your own network to the CC.

Hi,
I bought a cheap "MiraCast" dongle from eBay that works great. Less than $14 with shipping included from China. They list them as a "2nd Generation Chromecast 2" screen mirroring devices, a little misleading, but I'm happy with the unit, as it was brand new, in a very nice box I might add. If you need a link, then PM me, or reply here.
PS, they picture a Chromecast shape, but the lead with a Wi-Fi antenna is a giveaway. Here is a link to get you started, and actually is titled better than the one I bought, which is sold out. There are lots more like it at varying prices. https://m.ebay.com/itm/2-Digital-HD...d=202018167243&_trksid=p2349624.c100408.m2460

Motorhome option to cast from phone or tablet or TV without Wi-Fi or hotspot connecti
I was looking at a thread that discuss different connectivity options without Wi-Fi but could not figure it out. Are there any updates to this? Right now the only results that I have is to hardwire an iPhone to the TV using the HDMI connection and Apple Adapter device. The Mira cast Dongle works most of the time but is intermittent at best.

My son upgraded to an iphone so I got his old S7. Using it and the sony dvd player I can use miracast again.
I have also set up my main phone as a wifi hotspot and connected a chromecast and my S7 to it as well and been able to cast. This method ties up both devices and then they also both need to be plugged in. My wifes Iphone can also cast to the chromecast when connected to my hotspot.
Best I can come up with for now.