rns.recipes

I'm brand new to reticulum and have installed it on a Linux Mint laptop using pipx. I run Mullvad VPN on this laptop too. I used all the defaults. I have no other Rnodes on my network. When I run rnsd I get these errors:

[2026-05-18 12:03:58] [Warning] AutoInterface[Default Interface] Detected possible carrier loss on wlp0s20f3: [Errno 1] Operation not permitted
[2026-05-18 12:03:59] [Error] AutoInterface[Default Interface] No multicast echoes received on wlp0s20f3. The networking hardware or a firewall may be blocking multicast traffic.

Disabling the local firewall does nothing and there's no multicast option on my home firewall (I enabled mDNS and SSDP relay as a test with no luck). I don't see any option in Mullvad to allow multicast.

I did try adding the Amsterdam test network but no luck there either. Minus disabling Mullvad (very reluctant to for some opsec reasons) what else is there I can check?

Thanks in advance.

Have you activated 'Local network sharing' in Mullvad? (It's under Settings->VPN Settings)
I'm using Mullvad too and have no problems.
But the Autointerface is only for local connections, so adding the testnet was the right move.
The problem here is that the testnet has been discontinued, so just add some other.
Here is a list: https://directory.rns.recipes/
Here is also the chapter of the manual about configuring interfaces: https://reticulum.network/manual/interfaces.html

I had done the local settings on Mullvad but I'll check those links too. I'm worried its my homes physical firewall (it's a Firewalla Gold) vs the local host. TYTY.

I had this issue on my laptop and it was caused by ufw firewall. I had to allow udp on ports 29716 and 42671 for AutoInterface to work on local network(this is mentioned somewhere in documentation). If you have a firewall on your router it is worth checking out for this.