Occasional stutters, lag, "reduce bitrate message", otherwise handles well over 80mbps just fine

[NullVoxPopuli]

Describe the bug

This is a WIP issue, as I'm still collecting information, I just wanted to have a place that didn't pollute other issues' situations while I figure out what's been going on with my situation.

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Originally commented on: #79

Of note, moonlight is running on Ubuntu Linux, 24.04. I did not have any lagging on 23.10 and prior.

I've tried all solutions here (see below), and nothing has helped. What's goofy is I have buttery smooth streaming at 45-80+mbps (though, I keep this lower, because I don't want to tempt the stability anything -- I do have smooth (but slow) streaming and then stutters at 150mbps, so that's def too high) -- and I only have a 4fps slide for maybe 10s every 2-5 minutes. FPS on the host machine (shown via nvidia overlay) never drops belong my streaming refresh rate max (60fps in this case today)

So, this interval stutters is kinda telling me that either,

• I have some background job hogging my network at some interval (maybe windows defender? idk)
• something else I don't yet understand

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Update:

things I've tried so far

• turning real time protection off for windows defender, no impact
• reducing the streaming bitrate to < 10mbps, no impact
• reducing the display resolution on the host PC to <= 1080p, no impact (host PC has a 4080, and no perf issues)
• reducing the LAN speed to 100mbps, no impact

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Related Docs:

• https://github.com/moonlight-stream/moonlight-docs/wiki/Troubleshooting#video-is-choppy-or-laggy

Related issues:

• Since Upgrading to Latest GeForce Experience (3.5.0.70) Getting Infrequent Major Stutter #374
• Stuttering once every 20s on Nexus 5 #89
• Poor network connection on excellent network #79
• Low frame rate and high frames drop rate when using Sunshine vs GFE LizardByte/Sunshine#2189
• Sunshine <> Moonlight on Intel Arc A750 drops the game fps to unplayable LizardByte/Sunshine#1223

Steps to reproduce

still figuring these out

Affected games

n/a, all streaming is affected

Other Moonlight clients

PC

Moonlight adjusted settings

Yes

Moonlight adjusted settings (please complete the following information)

Moonlight default settings

No

Gamepad-related connection issue

No

Gamepad-related input issue

No

Gamepad-related streaming issue

No

Android version

n/a

Device model

Framework AMD 13, AMD Ryzen 5 7640U w/ Radeon 760M Graphics @ 12x 4.971GHz

Server PC OS version

Windows 11

Server PC GeForce Experience version

3.28.0.412

Server PC Nvidia GPU driver version

555.99

Server PC antivirus and firewall software

Windows Defender and Windows Firewall

Screenshots

n/a

Relevant log output

wip

Additional context

wip

[NullVoxPopuli]

The host PC has 0 issues, lag -- though, I don't know if the problem is with Sunshine or Moonshine.

Here are what the stats look like when streaming is smooth

And then when I get the slow connection rate

actualling, according to these logs, it looks like maybe Sunshine is having an issue. hmm

[NullVoxPopuli]

I'm starting to wonder if this is stemming from the last sunshine upgrade: 0.23.1
I wonder what I had before 🤔

[NullVoxPopuli]

Also, apologies for opening this issue on moonlight-android.

can a maintainer move the issue to sunshine?

[NullVoxPopuli]

I updated Sunshine to v2024.609.234340, and the problem persists 🤔

[NullVoxPopuli]

One thing I've noticed is that (during the frame rate drop) the frame rate client side is far below what the performance stats are saying it is. I experienced < 3fps, but the perf stats report up to 23fps (network, decode, and render). This observation was noticed at 4mbps.

[NullVoxPopuli]

Switching from Nvidia NVENC and the AMD encoder seems to also show no improvement.

[NullVoxPopuli]

I also tried switching to Geforce Gamestream (they brought it back?)
and the problem also still persists.... so... not a sunshine issue then?
maybe it really is my laptop / decoding. hmm

[NullVoxPopuli]

so maybe this issue should move to moonlight-qt?

[NullVoxPopuli]

ok.. I'm wired now and still have the same issue. def a software problem. hmm

[NullVoxPopuli]

That was a lie, I forgot to turn off wifi when trying. There is 0 problem when wired, so def not a software problem.

It's entirely a problem with my laptop's wifi.

[shovas]

Where can I find the latest troubleshooting for this exact issue?

I'm still experiencing these issues in Feb 2025 on a wired PC to Shield over a gigabit lan setup with the exact symptoms described. i7 12700KF w/3080.

I would say 80%+ frames are 60hz/60fps but occassionally there are multi-second slowdowns that look terrible.

I've tried playing the game locally and do not experience these slowdowns, it only happens when streaming.

[NullVoxPopuli]

In my case it was either a driver issue or hardware issue (with the specific wifi card).

Here is my evidence:
https://community.frame.work/t/responded-mt7922-poor-performance-fedora-6-7-7-200-fc39-x86-64/46817/3?u=nullvoxpopuli

Linked from a similar thread:
https://community.frame.work/t/intermittentent-wifi-connection-performance-problems-with-amd-13-first-gen-amd/53814?u=nullvoxpopuli