1

Hello,
I have a Xiaomi AX3600 router with OpenWRT 24.10.1.
For a few weeks now, I've been having trouble pinging Android phones from one machine.
When I test the ping from the router, it works.

From another machine (Raspberry/Windows, etc.), it doesn't always work.

Sometimes it works, sometimes it doesn't, and without any action.

I don't know what file or screenshot to give you to help me diagnose the problem.

Thank you.

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3

Since you're double NATing, from where to where, network wise ?

1 Like
4

all ips are from Lan (192.168.1.XXX)
all ips are static

5

Then Openwrt isn't really touching the traffic.

Post your /etc/config/network file.

6 

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 'fde5:cc23:855c::/48'

config device
        option name 'br-lan'
        option type 'bridge'
        list ports 'lan1'
        list ports 'lan2'
        list ports 'lan3'

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 interface 'wan'
        option device 'wan'
        option proto 'dhcp'

config interface 'wan6'
        option device 'wan'
        option proto 'dhcpv6'
7

Ok, do the same with the wireless file.

8

`
config wifi-device 'radio0'
option type 'mac80211'
option path 'soc@0/20000000.pci/pci0000:00/0000:00:00.0/0000:01:00.0'
option channel '36'
option band '5g'
option htmode 'VHT80'
option cell_density '0'

config wifi-iface 'default_radio0'
option device 'radio0'
option network 'lan'
option mode 'ap'
option ssid 'pirouette'
option encryption 'psk2'
option key 'XXXXXXXXXXXXXXXXXX

config wifi-device 'radio1'
option type 'mac80211'
option path 'platform/soc@0/c000000.wifi'
option channel '36'
option band '5g'
option htmode 'HE80'
option cell_density '0'

config wifi-iface 'default_radio1'
option device 'radio1'
option network 'lan'
option mode 'ap'
option ssid 'pirouette'
option encryption 'psk2'
option key 'XXXXXXXXXXXXX'

config wifi-device 'radio2'
option type 'mac80211'
option path 'platform/soc@0/c000000.wifi+1'
option channel '1'
option band '2g'
option htmode 'HE20'
option cell_density '0'

config wifi-iface 'default_radio2'
option device 'radio2'
option network 'lan'
option mode 'ap'
option ssid 'pirouette'
option encryption 'psk2'
option key 'XXXXXXXXXXXXXXX'
`

9

Probably Windows AV firewall blocking traffic? Maybe phones ignore pings when asleep (Wi-Fi power saving feature)? Your configs look good but still go to wireless Luci & check if AP/client isolation is disabled.

Try keeping only one radio either radio0 or radio1 (they have same SSID) so clients won't jump between them & cause issues with ARP binding.