Pixel Streaming client server connection problem

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1

I’m not able to get connected to the server using web server and proxy server setup provided https://docs.unrealengine.com/en-us/...PixelStreaming
this works perfectly locally but not on a client-server setup or at least I can’t get it working.
Is there anyone who could help me with this?

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2
  • Is your signaling server running on the host machine?
  • Is your WebRTC Proxy running on the host machine?
  • Is your Unreal project running on the host machine with the -AudioMixer parameter?

If yes to all of these and it is working locally, it is likely a firewall issue. Open and forward port 8888 to your local machine and connect to the public IP from the external computer.

3

The answer to all 3 questions is yes. And to keep things simple all inbound and outbound ports are open also windows firewall has is disabled.

4

Do you have any other web services currently running on the host machine that might interfere?

5

Nah I checked and there are no other web servers

6

Is the IP address you’re using to reach the computer running the Signaling Server accessible over the open Internet?

Did you configure a STUN server?

1 Like
7

the IP address is pingable. I used the provided TURN server provided by the 4.21 package

8

You can try using an ICE (Interactive Connectivity Establishment) architecture so that there’s a fallback even if one of the transitional server fails.

9

You have to follow this step.
First of all, you have to run to run.bat.
Second of all, you have to run to Start_webRTCProx.
Then click Ue4 shortcut. I suggest trying a packaged project.

I hope your issues gonna be solved.

1 Like
10

I guess you tried PixelStreaming at the local only connection(no access internet). if you do that you can not Pixel streaming on IOS right now. You have to do make a wifi connect the Internet, Then your issue will be solved.　I don’t know why Ios platform has to connect to the Internet. good luck.

11

@persoDeath were you able to get this working? I was also able to get it to run locally, but not able to get it to run over the web using the STUN server or the TURN server

12

@persoDeath Have you found a solution to this problem? We are in the exact same position: “Starting connection to server, please wait”.

13

The answer is here: Reddit - Dive into anything

From rgb-freak:

You have to edit the config.json in Engine\Source\Programs\PixelStreaming\WebServers\SignallingWebServer\

You must add a STUN and a TURN server
in the configuration as it described
under
Unreal Engine Pixel Streaming Reference | Unreal Engine 5.3 Documentation.
This server won’t work behind a NAT.
They must be public reachable in the
Internet.

For STUN i took
stun:stun1.l.google.com:19302

For TURN i rent the cheapest cloud
instance at
Günstiges Cloud Hosting (3 EUR /
Month) and followed this install
instructions:
https://www.nomachine.com/AR07N00894

Now it works like a charm. Only
clients behind proxys have connection
problems with the TURN server. Maye I
change the TURN server software as
mentioned here:
javascript - Coturn/turnserver : error 437: Mismatched allocation: wrong transaction ID (WebRTC) - Stack Overflow

In my case, I just changed this line in the Start_AWS_WithTURN_SignallingServer.ps1 file and it worked:

$peerConnectionOptions = “{ "“iceServers"”: [{"“urls"”: ["“stun:stun1.l.google.com:19302"”,"“turn:” + $PublicIp + “:19303"”], "“username"”: "“PixelStreamingUser"”, "“credential"”: "“Another TURN in the road"”}] }”

14

I am trying your solution but it still hangs with the “Starting connection to server, please wait” text in the browser. I don’t think hard coding the ps1 is the nicest way, but it seems an easy one. How can your solution work without setting up the TURNS server? Do you start/use something from the provided STUN/TURN in
UE_4.21\Engine\Source\ThirdParty\WebRTC\rev.23789\programs\Win64\VS2017\release directory?

15

How do you use the provided STUN/TURN servers? How did you configure them?

1 Like
16

I didn’t setup the stun server. I just use one of the Google Stun server available publicly. As I said, I change the ps1 file to include stun with this: stun:stun1.l.google.com:19302.

17

Hey there, looks like your reply is the only one in the entire web on this issue, i bought the 3€/m server but i’ve difficult following the guide, can you please help me to set it up? Thanks a lot in advance

18

Everything you need is already implemented for Pixel Streaming on React.js Have you tried MetaEditor to solve your problem?