I managed to flash my Linksys EA8100 router with OpenWrt. But even though my Chromecast(2.5Ghz) and my mobile (2.5 Ghz or 5 Ghz) are connected to the same network, Chromecast is not showing up on my mobile to cast. Am I missing something?
PS: I did manage to cast only once by following the answer mentioned in this link. though I was not able to find the option mentioned under Network (2nd step)
Chromecast keeps on disappearing on openwrt-based network - Super User
I've always had this issue unless the client wasn't on the same SSID as the Chromecast.
Being on the same router (but diff SSID) wasn't good enough.
Actually, being on the same SSID also didn't help me.
Let's start by looking at your config.
Please connect to your OpenWrt device using ssh and copy the output of the following commands and post it here using the "Preformatted text </> " button:
Remember to redact passwords, MAC addresses and any public IP addresses you may have:
ubus call system board
cat /etc/config/network
cat /etc/config/wireless
cat /etc/config/dhcp
cat /etc/config/firewall
Thanks for helping out, here are the outputs for the commands
$ ubus call system board
{
"kernel": "5.15.167",
"hostname": "OpenWrt",
"system": "MediaTek MT7621 ver:1 eco:3",
"model": "Linksys EA8100",
"board_name": "linksys,ea8100-v1",
"rootfs_type": "squashfs",
"release": {
"distribution": "OpenWrt",
"version": "23.05.5",
"revision": "r24106-10cc5fcd00",
"target": "ramips/mt7621",
"description": "OpenWrt 23.05.5 r24106-10cc5fcd00"
}
$ cat /etc/config/network
config interface 'loopback'
option device 'lo'
option proto 'static'
option ipaddr '127.0.0.1'
option netmask '255.0.0.0'
config globals 'globals'
option ula_prefix 'fdbf:298b:4e81::/48'
option packet_steering '1'
config device
option name 'br-lan'
option type 'bridge'
list ports 'lan1'
list ports 'lan2'
list ports 'lan3'
list ports 'lan4'
config device
option name 'lan1'
option macaddr 'XXXXXXX'
config device
option name 'lan2'
option macaddr 'XXXXXXX'
config device
option name 'lan3'
option macaddr 'XXXXXXX'
config device
option name 'lan4'
option macaddr 'XXXXXXX'
config interface 'lan'
option device 'br-lan'
option proto 'static'
option ipaddr '192.168.1.1'
option netmask '255.255.255.0'
option ip6assign '60'
config device
option name 'wan'
option macaddr 'XXXXXXX'
config interface 'wan'
option device 'wan'
option proto 'dhcp'
option type 'bridge'
config interface 'wan6'
option device 'wan'
option proto 'dhcpv6'
$ cat /etc/config/wireless
config wifi-device 'radio0'
option type 'mac80211'
option path '1e140000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0'
option channel 'auto'
option band '2g'
option htmode 'HT20'
option cell_density '0'
option country 'SG'
config wifi-iface 'default_radio0'
option device 'radio0'
option network 'lan'
option mode 'ap'
option ssid 'XXXX'
option encryption 'sae-mixed'
option key 'XXXXXX'
option disassoc_low_ack '0'
config wifi-device 'radio1'
option type 'mac80211'
option path '1e140000.pcie/pci0000:00/0000:00:01.0/0000:02:00.0'
option channel 'auto'
option band '5g'
option htmode 'VHT80'
option cell_density '0'
option country 'SG'
config wifi-iface 'default_radio1'
option device 'radio1'
option network 'lan'
option mode 'ap'
option ssid 'XXXX_5Ghz'
option encryption 'sae-mixed'
option key 'XXXXXX'
option disassoc_low_ack '0'
$ cat /etc/config/dhcp
config dnsmasq
option domainneeded '1'
option boguspriv '1'
option filterwin2k '0'
option localise_queries '1'
option rebind_protection '1'
option rebind_localhost '1'
option local '/lan/'
option domain 'lan'
option expandhosts '1'
option nonegcache '0'
option cachesize '1000'
option authoritative '1'
option readethers '1'
option leasefile '/tmp/dhcp.leases'
option resolvfile '/tmp/resolv.conf.d/resolv.conf.auto'
option nonwildcard '1'
option localservice '1'
option ednspacket_max '1232'
option filter_aaaa '0'
option filter_a '0'
config dhcp 'lan'
option interface 'lan'
option start '100'
option limit '150'
option leasetime '12h'
option dhcpv4 'server'
option dhcpv6 'server'
option ra 'server'
option ra_slaac '1'
list ra_flags 'managed-config'
list ra_flags 'other-config'
config dhcp 'wan'
option interface 'wan'
option ignore '1'
config odhcpd 'odhcpd'
option maindhcp '0'
option leasefile '/tmp/hosts/odhcpd'
option leasetrigger '/usr/sbin/odhcpd-update'
option loglevel '4'
$ cat /etc/config/firewall
config defaults
option syn_flood 1
option input REJECT
option output ACCEPT
option forward REJECT
# Uncomment this line to disable ipv6 rules
# option disable_ipv6 1
config zone
option name lan
list network 'lan'
option input ACCEPT
option output ACCEPT
option forward ACCEPT
config zone
option name wan
list network 'wan'
list network 'wan6'
option input REJECT
option output ACCEPT
option forward REJECT
option masq 1
option mtu_fix 1
config forwarding
option src lan
option dest wan
# We need to accept udp packets on port 68,
# see https://dev.openwrt.org/ticket/4108
config rule
option name Allow-DHCP-Renew
option src wan
option proto udp
option dest_port 68
option target ACCEPT
option family ipv4
# Allow IPv4 ping
config rule
option name Allow-Ping
option src wan
option proto icmp
option icmp_type echo-request
option family ipv4
option target ACCEPT
config rule
option name Allow-IGMP
option src wan
option proto igmp
option family ipv4
option target ACCEPT
# Allow DHCPv6 replies
# see https://github.com/openwrt/openwrt/issues/5066
config rule
option name Allow-DHCPv6
option src wan
option proto udp
option dest_port 546
option family ipv6
option target ACCEPT
config rule
option name Allow-MLD
option src wan
option proto icmp
option src_ip fe80::/10
list icmp_type '130/0'
list icmp_type '131/0'
list icmp_type '132/0'
list icmp_type '143/0'
option family ipv6
option target ACCEPT
# Allow essential incoming IPv6 ICMP traffic
config rule
option name Allow-ICMPv6-Input
option src wan
option proto icmp
list icmp_type echo-request
list icmp_type echo-reply
list icmp_type destination-unreachable
list icmp_type packet-too-big
list icmp_type time-exceeded
list icmp_type bad-header
list icmp_type unknown-header-type
list icmp_type router-solicitation
list icmp_type neighbour-solicitation
list icmp_type router-advertisement
list icmp_type neighbour-advertisement
option limit 1000/sec
option family ipv6
option target ACCEPT
# Allow essential forwarded IPv6 ICMP traffic
config rule
option name Allow-ICMPv6-Forward
option src wan
option dest *
option proto icmp
list icmp_type echo-request
list icmp_type echo-reply
list icmp_type destination-unreachable
list icmp_type packet-too-big
list icmp_type time-exceeded
list icmp_type bad-header
list icmp_type unknown-header-type
option limit 1000/sec
option family ipv6
option target ACCEPT
config rule
option name Allow-IPSec-ESP
option src wan
option dest lan
option proto esp
option target ACCEPT
config rule
option name Allow-ISAKMP
option src wan
option dest lan
option dest_port 500
option proto udp
option target ACCEPT
Start by removing sae-mixed, use WPA2 or 3.
Use same ssid in all bands.
As I was using the same SSID and cred as before installing OpenWrt, I did reset the Chromecast based on the conversation in this thread OpenWRT 23.05: cannot add Chromecast - Installing and Using OpenWrt - OpenWrt Forum
Let's see if that helps to fix it.
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