@sith-lord-goz Rollback netplay, which is what is implemented in retroarch, relies on savestate determinism, like several other features (runahead, rewind, ...)

@AwesomeKingClem I am just now finally getting to it. Sorry about that!

@Ashpool said in Netplay on RetroPie Experiences?:

RetroArch will invisibly rewind

Netplay, rewind, runahead and preemptive frames are savestate-based features.

It looks very nice and I hope it will be possible to have this in RetroPie. Without being a developer, I think it is unlikely that we will see the latest version of this emulator in RetroPie, because of the minimal requirements set by the developer.

it's a problem from current retroarch version

No, since the problem doesn't show up on other platform.

it's a problem from the core when it's build for arm (probably this one)

Unlikely, since the core on RetroPie works with Netplay using the latest RetroArch version.

The issue in this post is related to missing .info files, which were not part of Retropie's RetroArch installation until 1 year ago. Users which upgraded their RetroArch package without updating the RetroPie-Setup script had this kind of errors, which are solved with an update of RetroPie-Setup and then re-installing RetroArch.

I don't think your issue is related to the current topic.

Ok figured it out.

First step, is to open your router and add your raspberry pi to the port forwarding. This is easy enough, you will want to use the internal IP of you pi, and open port 22 to tcp. you can usually access your router settings via http://192.168.0.1/ in your browser, providing you are wired directly into the router and not using wifi to connect.

Once this is done you will need the external ip. I found it by going on to my retropie under "retroarch netplay".

You will need this external ip to login from the internet.

this site has the steps on creating a new user:

https://humanwhocodes.com/snippets/2021/03/create-user-linux-ssh-key/

Once done you can open putty from any pc connected to the internet and ssh into your pi by using the external ip.

Expose your pi to the internet at your own risk.

There's a virtual keyboard on my end when using Netplay, no physical keyboard needed.

I guess first try updating to the latest Retropie version along with Retroarch as well.

@dankcushions great i'll try thanks

@mitu While speaking with NETPLAY, an instant text/voice messaging application for the community (Teamspeak / Mumble / or better: Discord) would be great to find mate to do netplay games. Like i posted into another thread : link text

@iandaemon You're true, the forum cannot be replaced. This is the best information source.
Discord Channel is more to speak with peaple, make friends, play together.

Why the language is an issue? Most peaple speak English all over the world. (i'am French for exemple)

Solved..
I've updated the ownership of below folders and all files under it..
sudo chown -R pi:pi /home/pi
sudo chown -R pi:pi /opt/retropie/configs

it fixed the issue, when IP or any change such as C or H , has been made on netplay setup . it wasn't update the "netplay_ip_address = " in retroarch.cfg accordingly.

thank for helps.

@saccublenda said in Netplay help:

@UberLumby You can follow the instructions here.

Thank you
"Create a symbolic link to the RetroArch core you want to use for netplay in the directory where the core info file was stored, for example
ln -s /opt/retropie/libretrocores/lr-fceumm/fceumm_libretro.so $HOME/.config/retroarch/cores"
This confused me a bit but I think I understand this creates a link to the existing .So I was copying and pasting them into the retroarch cores folder last night lol ops...

Check your port forwarding settings on your router. You maybe able to restrict the port forward to specific external IP address(es) or MAC address(es). If so you can whitelist your friends IP/Mac address.

@Kaydron said in Issues with NetPlay: Client cannot connect when going through RetroPie:

I found this post that has very similar symptoms https://github.com/RetroPie/RetroPie-Setup/issues/3161.

If you're encountering the same problem as the the one described in the issue, then there's no solutio yet, just the workaround posted in the same issue. The only method that seems to work is to directly connect by specifying the hostname.

@BGallagherLA wondering if that is just an automatic thing with NetPlay and is just a computer player or something rather than someone actually joining? I just don't understand how someone can randomly join a game when you need the proper external IP to be able to access the game, and the exact same rom set, emulator and RetroPie version in order for it to work