Dropped frames on one of two Sunshine servers

[MoTeB-BE]

Is there an existing issue for this?

• I have searched the existing issues

Is your issue described in the documentation?

• I have read the documentation

Is your issue present in the latest beta/pre-release?

This issue is present in the latest pre-release

Describe the Bug

I have 2 Sunshine servers in my home network, and I connect to them both via Moonlight. The issue is that, since a few days, one of the servers has a lot of dropped frames, when connecting to it from my iPhone via 5G/Tailscale. Connecting to the other server via 5G/Tailscale is not an issue, everything works as expected.

So I don't think it's an iPhone issue or a cellular connection issue, as then I would expect it to happen on the other server as well.

Also, connecting to the server using WiFi/Tailscale works fine.

It seems to be a specific issue using 5G and that server setup.

Expected Behavior

No response

Additional Context

The issue is more clear when only showing the desktop, there seems to be less dropped frames when a window is open. But there a still lots of dropped frames.

Host Operating System

Windows

Operating System Version

10.0.26100 Build 26100

Architecture

amd64/x86_64

Sunshine commit or version

v2025.130.210222

Package

Windows - installer (recommended)

GPU Type

AMD

GPU Model

AMD Radeon RX 6750 XT

GPU Driver/Mesa Version

24.12.1

Capture Method

None

Config

Apps

Relevant log output

Not sure what would be relevant log output, I can't attached the full log here (too big). If somebody can specify what is needed, I will update the issue.