Pixel Streaming works on a local setup but fails to connect when using TURN in a NAT enabled network.

[VegetableWithChicken]

Component your feature request relates to

• [x] Signalling server

Problem your feature solves? Please describe. the turn server can run by HTTP in NAT,

Describe the solution you'd like

1. unreal --pixelstremingip="publicip",and run
2. config "PublicIp":"XXX.XXX.XXX.XXX"
3. run Start_WithTURN_SignallingServer.ps1 by powershell
4. and open the web ,it black

Additional context

[lukehb]

For extra context here, do you mean running the TURN server on say port 80?

[VegetableWithChicken]

For extra context here, do you mean running the TURN server on say port 80?

I use localhost to start local pixelstreaming is OK, but after turning on Turn and network penetration, open the display black screen on the public network, the internal network opening screen shows normal, I have set publicIP as public IP. QA:

1. how to deploy ？
2. how to setting the turn server
3. Whether you need to config HTTPS=true ?

[lukehb]

Are you running the TURN server outside the NAT?

Ideal setup is:

• Run TURN server outside the NAT on a public IP, you should modify Start_TURNServer.ps1 as a starting point (you may wish to change the default port it uses for example).
• When you launch the signalling server inside the NAT you should modify Start_SignallingServer.ps1 so it contains something like:

$peerConnectionOptions = "{ \""iceServers\"": [{\""urls\"": [\""stun:" + stun.l.google.com:19302 + "\"",\""turn:" + $global:TurnServer + "\""], \""username\"": \""PixelStreamingUser\"", \""credential\"": \""AnotherTURNintheroad\""}] }"

Where global:TurnServer is the public IP:port of the TURN server.

For 3) - do you need HTTPS=true? No, only if you want the website to be served with https, but for testing TURN setup, no it is not required.

Many users choose to run the TURN server on port 80 or 443 as they are often left open on corporate networks and give the greatest chance of a successful connection.

[VegetableWithChicken]

"stun:" + stun.l.google.com:19302 +

it should change my publicip +port ??

[lukehb]

The STUN part is simply to use Google's existing STUN server, I provided this one: "stun:" + stun.l.google.com:19302 as it is one I know works. However, you can also point this at your own STUN server if you so wish.

[VegetableWithChicken]

The STUN part is simply to use Google's existing STUN server, I provided this one: "stun:" + stun.l.google.com:19302 as it is one I know works. However, you can also point this at your own STUN server if you so wish.

i have connected inside turn ,but how to set param of unreal.exe

[VegetableWithChicken]

The STUN part is simply to use Google's existing STUN server, I provided this one: "stun:" + stun.l.google.com:19302 as it is one I know works. However, you can also point this at your own STUN server if you so wish.

streamer LEGACY disconnected: 4000 - Cannot find type field in SS message: {"peerConnectionOptions":{"iceServers":[{"urls":["stun:","turn:XX.XX.XX.XX:80" 13:58:36.602 unsubscribing all players on LEGACY 13:58:36.647 Streamer connected: ::ffff:XX.XX.XX.XX:80 13:58:36.647 unknown <- {"type":"identify"} streamer LEGACY disconnected: 4000 - Cannot find type field in SS message: {"peerConnectionOptions":{"iceServers":[{"urls":["stun:","turn:XX.XX.XX.XX:80 13:58:36.771 unsubscribing all players on LEGACY 13:58:36.816 Streamer connected: ::ffff:XX.XX.XX.XX:80 13:58:36.816 unknown <- {"type":"identify"} streamer LEGACY disconnected: 4000 - Cannot find type field in SS message: {"peerConnectionOptions":{"iceServers":[{"urls":["stun:","turn:XX.XX.XX.XX:80 13:58:36.941 unsubscribing all players on LEGACY 13:58:36.977 Streamer connected: ::ffff:XX.XX.XX.XX:80 13:58:36.977 unknown <- {"type":"identify"} streamer LEGACY disconnected: 4000 - Cannot find type field in SS message: {"peerConnectionOptions":{"iceServers":[{"urls":["stun:","turn:XX.XX.XX.XX:80 13:58:37.110 unsubscribing all players on LEGACY 13:58:37.155 Streamer connected: ::ffff:XX.XX.XX.XX:80 13:58:37.155 unknown <- {"type":"identify"}

[lukehb]

Can you please share your modified scripts? I think you didn't escape the string properly perhaps.

[VegetableWithChicken]

你能分享你修改后的脚本吗？我认为您可能没有正确转义字符串。 //cirrus.js
let clientConfig = {"peerConnectionOptions":{"iceServers":[{"urls":["stun:140.206.49.220:19302","turn:140.206.49.220:19303"]}]}};

//config.json
{
"UseFrontend": false,
"UseMatchmaker": false,
"UseHTTPS": false, "UseAuthentication": false, "LogToFile": true, "LogVerbose": true, "HomepageFile": "player.html", "AdditionalRoutes": {}, "EnableWebserver": true, "MatchmakerAddress": "", "MatchmakerPort": 9999, "PublicIp": "140.206.49.220", "HttpPort": 81, "HttpsPort": 443, "StreamerPort": 8888, "SFUPort": 8889, "MaxPlayerCount": -1 }

//Start_WithTURN_SignallingServer.ps1

# Copyright Epic Games, Inc. All Rights Reserved.

. "$PSScriptRoot\Start_Common.ps1" $args

set_start_default_values "y" "y" # Set both TURN and STUN server defaults
use_args($args)
print_parameters

Push-Location $PSScriptRoot

Start-Process -FilePath "PowerShell" -ArgumentList ".\Start_TURNServer.ps1" -WorkingDirectory "$PSScriptRoot"

#$peerConnectionOptions = "{ \""iceServers\"": [{\""urls\"": [\""stun:" + $global:StunServer + "\"",\""turn:" + $global:TurnServer + "\""], \""username\"": \""qxsy-openapi\"", \""credential\"": \""chong.peng_qx\""}] }"
$peerConnectionOptions = "{ \""iceServers\"": [{\""urls\"": [\""stun:" + $global:StunServer + "\"",\""turn:" + $global:TurnServer + "\""]}] }"
$ProcessExe = "platform_scripts\cmd\node\node.exe"
$Arguments = @("cirrus", "--peerConnectionOptions=""$peerConnectionOptions""", "--PublicIp=$global:PublicIp")
# Add arguments passed to script to Arguments for executable
$Arguments += $args

Push-Location $PSScriptRoot\..\..\
Write-Output "Running: $ProcessExe $Arguments"
Start-Process -FilePath $ProcessExe -ArgumentList $Arguments -Wait -NoNewWindow
Pop-Location

Pop-Location

[VegetableWithChicken]

when i connected turn server ,and log:

13:56:53.284 unknown <- {"type":"identify"}
13:56:53.380 __LEGACY__ -> {"type":"endpointId","id":""}

[VegetableWithChicken]

still faild

[VegetableWithChicken]

1. export port to public in NAT,