Chromecast disappears after few hours

Software SW help
21

I’m not so advanced user to know where to find logs with details like you describe.

22

Hi guys,
I still have a problem with my Chromecasts (two units - original and audio). I tried to update my Omnia to the latest update but nothing changed.

Chromecast is visible in connected devices but I can’t access it from any device running iOS or Android. I use the wifi1 module, because Chromecast could connect only to 2,4 GHz networks.

On my old router is everything working.

Any other idea?

23

Hello,
Write email to tech.support(at)turris(dot)cz

24

Hello!

I have the same issue with my Chromecast and with Bonjour on my NAS. Everything works for a while (minutes to hours) after rebooting, but after a while, nothing on the 5GHz network can see the Chromecast (on 2.4GHz) or the NAS (on ethernet).

Any idea what is happening? Is this a driver bug on the 5GHz card? I’m assuming it’s not a misconfiguration on my end, since it works for a while after a reboot…

25

I too am having this problem. Sometimes my phone will stop detecting the Chromecast. When that happens I can’t even ping the Chromecast from the phone anymore, though I can ping it from the router.

26

Maybe this will help?

This is a bit of code I used to need when I was running OpenWrt (Turris OS is based upon OpenWrt), and I had a Chromecast v1 on 2.4 Ghz which I needed to access from my PC/Smartphone on 5 GHz.

### Step 5/3: Get Chromecast to work across WLANS, see: https://forum.openwrt.org/viewtopic.php?id=48475
  if ! grep -q multicast_snooping /etc/rc.local; then
    sed -i '/exit/i echo "0" \> /sys/devices/virtual/net/br-lan/bridge/multicast_snooping' /etc/rc.local
                    echo "0"  > /sys/devices/virtual/net/br-lan/bridge/multicast_snooping 
  fi;

I don’t need it anymore, but now I have a Chromecast v2, and everything is on 5 Ghz.

27

Where would I put that?

I have a Chromecast 2 too, but I have stuff on both 5GHz and 2.4GHz, and the Chromecast can connect to either. I also have stuff on Ethernet.

Anyway, /sys/devices/virtual/net/br-lan/bridge/multicast_snooping already contains 0.

28

You don’t put it anywhere - it is a piece of script I used to run on a OpenWrt build system. That is, you only execute it once, and it makes a permanent change to /etc/rc.local.

Now thinking about it, a better way is:

# make the following modification to /etc/config/network
# config interface 'lan'
#   option igmp_snooping '0'
## or, simply execute the following:
uci set network.lan.igmp_snooping=0
uci commit; /etc/init.d/network reload

Actually, on my system, the value is still 1, did you already do one of the above?

29

I think so. I do have option igmp_snooping '0' in that file.

Both the phone and the Chromecast are currently on 5 GHz though, so that shouldn’t be a problem.