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this post was submitted on 06 Dec 2025
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Linux Gaming
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Proton doesn’t really affect networking and focuses more on Graphics
Do you have a firewall enabled at all? I’ve noticed with the latest Cachy services like ssh and WebDAV seem to be blocked by default
I would definitely check for any firewall services like ufw. Any other games exhibiting this behaviour?
Proton actually contains quite a lot of libraries, some responsible for networking.
Not really, I have IPv6, a regular consumer router and no client side firewall. The Steam deck is in the same network.
Work fine. Never had issues with online functionality. Palia, CS2, Satisfactory, Warframe, BG3, GW2, Forza Horizon 4+5, ... all work fine
Some responsible, hence the focus being graphics compatibility
If you don’t have 4to64 Nat translation that could definitely be a thing
Are you pure self rolled arch or a distro? Do you have a network that allows you to see mdns and multicast traffic?
Regular Arch. My Steam Deck has the same network and works fine.
Self rolled arch, do you have ufw installed?
Since your steam deck works fine you can look for traffic with multicast or steam services
Neither UFW nor Firewalld are enabled. I guess I'll whip out ye olde tcpdump+wireshark...