Chromecast Needs Active Internet to operate??

[poddy]

Hi all. I have Chromecast version 1. Can't find an answer to my question anywhere...

The other night our internet went off for some hours. I thought I would cast a show from my Synology NAS using Plex (which has cast to the Chromecast before without issue). But the error message I received said it couldn't cast because there was no internet.
I also tried a different Android casting app called Allcast but same result.

I fail to understand why, as both the NAS and the Chromecast are on the same home network. The NAS is on wired Ethernet and the Chromecast is WiFi; would that make a difference?

I'm confused

Patrick

 

[Dannydet]

No internet = no wifi. Your internet NEEDS to be up and running for wifi to work.

 

[El Presidente]

No internet = no wifi. Your internet NEEDS to be up and running for wifi to work.

You should still be able to have an active Wireless network where devices can talk to each other, but with no internet connection.

Chromecast isn't point to point/DLNA, it uses something called DIAL to view movies/videos etc. My understanding is that when you cast something you're not sending it from your device to chromecast, you're using your device to tell chromecast to go and look for it via a webserver (or wherever) and play it directly from there.

I'm not sure how allcast works, but as Plex is set up an internet based media server, if that couldn't connect to the internet, chromecast won't be able to receive media from it.

 

[svim]

What kind of modem and router do you have? Is it a matter of using the supplied ISP modem/router, or do you have a separate modem and your own router?

 

[poddy]

What kind of modem and router do you have? Is it a matter of using the supplied ISP modem/router, or do you have a separate modem and your own router?

Having changed providers I have to use their very ordinary SagemCom brand Modem/Router to operate their VOIP service, until I get the energy to work out how to get the equivalent working on a better model.

 

[poddy]

You should still be able to have an active Wireless network where devices can talk to each other, but with no internet connection.

Chromecast isn't point to point/DLNA, it uses something called DIAL to view movies/videos etc. My understanding is that when you cast something you're not sending it from your device to chromecast, you're using your device to tell chromecast to go and look for it via a webserver (or wherever) and play it directly from there.

I'm not sure how allcast works, but as Plex is set up an internet based media server, if that couldn't connect to the internet, chromecast won't be able to receive media from it.

Mmmm, sounds reasonable when you explain it like that.

I was trying to discard my (wired) HTPC from my system, and hoped the Chromecast might meet ALL streaming needs. Guess this proves not. Might be time to build a smaller, neater HTPC with pretty much the sole aim of being a media-streaming device -- unless somebody has a neater solution using fewer/smaller/cheaper devices ???

Thanks for the answers, much appreciated.

 

[svim]

I have to assume your problem has to do with that SagemCom modem/router, or more specifically the router part of the device itself. You should be able to stream content to your Chromecast from another device inside your network even if the your Internet connection goes down, I've done it several times just streaming vids directly from my desktop (wired) and my laptop (WiFi) to my Chromecast using a simple utility called castnow. As long as your router is still working, all your devices are still networked together in your local network so the online connection isn't a factor until something actually needs Internet access.
When your Internet access failed was it an issue with your ISP's service or the modem/router box? I have to think it's at least partially tied to your modem/router, a separate router will still enable your local network to stay up no matter if there's a feed coming in from a modem or not.