Network Connection Issues Only With Linux Host - Windows Host Working OK

[dizzydre21]

Describe the bug
I experience constant network connection issues when streaming from a Linux host. This occurs over WIFI and with a USB 1Gbe NIC. If I run Windows on the host, with all things kept constant, I can stream flawlessly at over 50Mbps.

Steps to reproduce
Boot up the Steamdeck and launch Moonlight. Remote into my EndeavourOS desktop, then it and every game I've tried has network connection issues and frame drops even below 30Mbps on a tuned WIFI network as well as wired with a USB-C NIC.

Screenshots

Affected games
Stalker 2, Hades, Witcher 3, and it happens when just using the desktop. I've tried running Steam with gamescope-session-steam-git and the issue occurs there too.

Other Moonlight clients
I haven't been able to test from another Linux client yet.

Moonlight settings (please complete the following information)
Settings I've changed or played around with:

• Resolution to 1280x800 and 2560x1600
• Bitrate from 30Mbps to 55MBps
• Vsync enabled/disabled
• Frame Pacing enabled/disabled
• Capture system shortcuts In Fullscreen
• Video codec HEVC and AV1
• Enabled HDR

Gamepad-related issues (please complete if problem is gamepad-related)
N/A

Client PC details (please complete the following information)

• OS: SteamOS newest beta
• Moonlight Version: 6.1.0
• GPU: Steamdeck APU
• Linux package type (if applicable): Flatpak and Appimage

Server PC details (please complete the following information)

• OS: EndeavourOS
• Sunshine or GeForce Experience version: Sunshine v0.23.1, v2025.118.151840, and v2025.122.141614
• GPU: AMD Radeon RX 7900 XT
• GPU driver: Mesa 1:24.3.3-2

Moonlight Logs (please attach)

• On Windows, Moonlight-###.log files can be found in %TEMP%. Simply type that into the File Explorer path field to navigate there.
• On macOS, Moonlight-###.log files can be found in /tmp. In Finder, press Cmd+Shift+G, then type /tmp to navigate there.
• On Linux with the Flatpak, logs print to the terminal when running with the command: flatpak run com.moonlight_stream.Moonlight
• On Linux with the Snap, logs print to the terminal when running with the command: moonlight

Additional context
The network drops do not occur when there is little or no motion happening on the display.