Can only find Chromecast in Android apps for a short time after router restart

[GreenSystemAdmin]

Solution was to upgrade to the 19.07 SNAPSHOT with Luci and enable IGMP Snooping and disable legacy 802.11b rates as I discovered in this thread:

Google cast devices disappear

I tried enabling IGMP snooping on 18.06.4 and this didn't seem to work, so I decided to try the 19.07 SNAPSHOT that has Luci included instead: https://downloads.openwrt.org/releases/19.07-SNAPSHOT/targets/ Glad to say that adding option igmp_snooping '1' to /etc/config/network under the LAN interface fixed this for me: config interface 'lan' option type 'bridge' option igmp_snooping '1' I also disabled legacy 802.11b rates (which can be done in the Luci GUI under "Network>Wireless>Ed…

Relevant Wiki links:

IPTV / UDP multicast

Wireless Access Point (aka "Dumb" Access Point)