Balena devices on the same network cannot ping each other

Hello, I am currently facing a networking problem with two RPI 3b+ devices running balena OS version 2.46.1. They are showing up in the balena cloud console and working fine while connected to the same wifi network. One has address and the other has address, but cannot ping each other. I have tried both at Host OS and Container level, but all tests give me an empty result. Am I missing something?

The one below is my routing table, and the gateway is

Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
default         _gateway         UG    600    0        0 wlan0    *        U     0      0        0 balena0    *        U     0      0        0 resin-dns    *      U     0      0        0 supervisor0     *      UH    0      0        0 resin-vpn      *          U     0      0        0 br-7fe66c81aa13     *        U     600    0        0 wlan0

Hi @tgirotto, are you able to ping remote locations like Also on the dashboard you will find a Diagnostics tab - can you please run the device health checks there and let us know if you see any issues reported?


Also what does cat /proc/sys/net/ipv4/icmp_echo_ignore_all returns when running from the host OS? This is to check whether ping packets are not disabled from the kernel.

@majorz I have figured out the problem, and it’s not related to balena. My AP was isolating all hosts. Once I disabled isolation, everything started working again. Thanks for the support!

Nice to hear that you figured out the problem : )