Database Develop

Why does Chromecast need internet to function?

Rooted with latest Eureka firmware. The Chromecast is already configured and tested for the local WiFi.
However, the TV displays the following Chromecast screen with WAN disabled:
"reconnect me
'MyChromecast' connected to MyNetwork, but can't access the internet
Check that your internet connection is working
Otherwise, run the Chromecast app to choose a different network"
This is reported by BubbleUPnP when attempting to play a file:
"Cannot Play: GoogleApiClient is not connected yet."
After enabling the WAN, the Chromecast works as normal. The WAN can then be disabled again, and the Chromecast can still work. However, if the Chromecast is powered off, then it needs to connect to the internet again in order to work.
One would think it wouldn't have to call home every time you turn the device on. Seriously, just that idea that this thing has to connect to an external online server to work locally is ridiculous. Does anybody know how to work around this limitation?

xdadevnube said:
After enabling the WAN, the Chromecast works as normal. The WAN can then be disabled again, and the Chromecast can still work. However, if the Chromecast is powered off, then it needs to connect to the internet again in order to work.
One would think it wouldn't have to call home every time you turn the device on. Seriously, just that idea that this thing has to connect to an external online server to work locally is ridiculous. Does anybody know how to work around this limitation?
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Chromecast loads the player apps via web requests. Google's whitelist determines what application should be loaded for a particular request type.
It's primary design is to stream from Internet-based services (YouTube, Hulu Plus, Pandora, etc) so it needs Internet access.
Chromecast is not a wireless HDMI connection.

bhiga said:
Chromecast loads the player apps via web requests. Google's whitelist determines what application should be loaded for a particular request type.
It's primary design is to stream from Internet-based services (YouTube, Hulu Plus, Pandora, etc) so it needs Internet access.
Click to expand...
Click to collapse
You are right but it does also some caching of the apps loaded (this doesn't survive power down). That's why OP could kill WAN connection and still have it (semi) working.

Problems with Chromecast or Internet too slow?

I cannot cast anything without it buffering on my chromecast anymore.
Youtube/Netflix can play but resolution is of lowest quality (probably because its built in), but casting tab from web browser will not work at all. At first I thought my internet speed was slow, but I do a speed test most days (on mac) and get an average of 30mpbs-35mbps. Mobile speed I get is 5mbps. Funnily enough I play Netflix through phone and it plays but like I said, quality is compromised. My other tv which is a smart tv (no Chromecast) plays Netflix/Youtube of the full 1080p and no lagging. So which leads me to believe that there is a problem with the Chromecast itself?
My only other option is to see if it works on the smart tv, but then it defeats the purpose of having a smart tv. And I will be without smart tv/chromecast in the bedroom.
Any advice please?

yep, I'm finding this too. I ended up hooking my laptop up via hdmi because casting was so poor. Really low resolution and it would lose connection (black tv screen, laptop still playing) for 3-4 seconds, every 15 minutes or so.
I'm very quickly losing patience with the CC.

After 3 chromecast (of which 1 returned) and trying 2 new routers specifically for making cc work I couldn't find any permanent solution. Where any phone or tablet works fine for streaming netflix, plex, etc, cc would struggle, I gave up, it's useless. Btw, the routers I tried for the past year are netgear r6200, Linksys ea6500 and currently netgear r7000.
Sent from my HTC One

Do you try speed4cast? You can see if the problem is from internet or from CC. Reboot router, enable upnp on the router and look for new update by rebooting CC.
If nothing works, make a factory reset and try to cast. If not, return the device.

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.
Click to expand...
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.

Chromecast Help Forum

I have a network at home which includes a standard router which is connected to other parts of the house via 3 Powerline Adapters which broadcast the Wi-Fi signal.
I have 3 Chromecast devices and 1 Chromecast Audio.
The Chromecast attached to the TV at the main router is very stable and rarely gives is problems.
One of the other Chromecasts has to be powered down when that TV is not in use so on each use it has to go through a restart. On Saturday I noticed that even after a restart I couldn't find the device. The Chromecast backdrop photos were scrolling, it showed up on startup as connected to the network but it was not visible in the apps or in Home. It took a restart of both my mobile device and the Chromecast to get it working. This issue was with a Samsung S7.
Today (Sunday) I was trying to use the third Chromecast and had similar issues except, at times, the Chromecast was visible in Home but not in the apps (Netflix or Google Music). Again several restarts of both Chromecast and mobile device were required. Eventually I got it working but after watching a feature film the Chromecast disappeared from both Home and the app (Netflix). The film credits were rolling but I could not stop the film or choose another film. These issues were with Samsung S7 and S5. The S5 was unable to see the Chromecast. Both mobiles are up to date with software.
I get similar issues with the Chromecast Audio but to a lesser extent.
I am beginning to have severe reservations about Chromecasts reliability.

are you sure, that the Powerline Adapter forward the Arp request and discovery messages? that was the reason,that the poweradapter did not live long beside me...to much network issue's
Gesendet von meinem Samsung Galaxy Note Pro 12.2 SM-P905 mit Tapatalk

I am not sure I know what the ARP request is and how to check it.

Weird Chromecast problems, but only with this phone. Maybe some obscure setting?

I have two Chromecasts -- one first generation and one second generation. I also have an old Firestick. My wife's Galaxy S 9 works fine with all three devices. My phone worked fine with all three until a couple of weeks ago. Now, my phone can only cast to the Firestick (and obviously only from supported apps like YouTube and Netflix). If I open the Google Home app on my phone, both Chromecasts appear in their appropriate rooms, but that's about where my control ends.
In Home, I can tap and connect to the second generation device to control the volume and I can also tap the "Watch live TV" button below the icon and it will start casting some weird network with old game shows. I can do absolutely nothing else with that Chromecast including screen mirroring, casting from any app, or even viewing or controlling playback of media cast from a different phone. I can tap to connect to the first generation device, but it says "Not available" and that's the end of that. There is no "Watch live TV" button below it.
Again, all of these devices work fine with my wife's phone. I have tried all the usual culprits from unplugging every relevant device and waiting a few minutes, resetting the Chromecast, clearing Home app data, uninstalling and reinstalling apps, verifying all devices are on the same network, making sure Home and Google Play Services have full permissions, the phone isn't in power save mode, sensors are enabled, etc... Google Home has no trouble managing other connected devices in my home including light bulbs and speakers. I can reset the Chromecasts and actually set them up with my phone from the Home app, but as soon as they connect to Home, my phone can no longer control them.
Anyone ever had a similar experience? Can you think of any obscure settings that might be causing me issues? I already spent an hour or more with Google's Chromecast support and I'm about to see if I can find a good Samsung support channel.