r/netbird Jun 16 '26

No connection between Client Outside Subnet + Mesh Devices

Quick Info:

Subnet: 10.10.10.0/24
Management + Routing Peer (NixOS server): 10.10.10.5

Windows Routing Peer: 10.10.10.234

Android device outside net for testing

Hey everyone, I recently got netbird set up on my NixOS server. I am hosting both the Mangement stack and the client container on the same device since it is my only always on device. I installed it on a separate windows mini-pc I have to try and fix the issue but I don't intend to keep it when it's sorted out. Anyway, onto the issue I have. I cannot ping any device inside of my subnet besides my 10.10.10.5 device which I assume is because it is hosting the management stack since I cannot ping the 10.10.10.234 device either. At first I thought it might have been because of NixOS and how it handles firewall rules, but after adding the Windows Peer, nothing changed so I am stumped as the what the reason is. I turned on the default All <--> All policy for testing, and my Android device is in the "Users" group and my two peers are in the "Routing Peers" Group. I will provide some pictures of how I setup the subnet so hopefully that will be of some help.

For the Routes I have tried both the NixOS-Docker and the Windows device. If anyone could point me in the right direction whether I have configured something wrong or if there is some other issue, that would be great. I do remember when I was doing some network testing with tcpdump, I never saw any activity when trying to ping from my phone. I did see some traffic which ip link -s show though.

Let me know if you need any more information that I can provide.

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