@Efriim said in Error when starting netplay host: @saccublenda Perhaps there is the same setting somewhere within retroarch. Indeed there is. Under Settings -> User -> Username (it sets the "netplay_nickname" in retroarch.cfg). With this matching the hostname I can start the netplay host from retroarch menu. It is a peculiar thing, I remember it working without configuration, I had a hostname so I don't really understand it. Same here. I used to have a netplay nickname different from the hostname, and it didn't matter. Weird.

@mitu said in Can't seem to get Netplay to work: @mikespie Please add more info about your system - https://retropie.org.uk/forum/topic/3/read-this-first. The core means which emulator are you using for the running the game. You need to use the exact version of it and also the exact ROM on both systems. Since you're running a Megadrive rom, the core should be either lr-picodrive (I think this is the default) or lr-genesis-plus-gx (see the Megadrive docs). Thank you for your response, sorry for not providing all info. Just from your post I was able to figure it out and have Netplay working / connecting now! However, it seems as though the controllers do not work in a lot of the games while on Netplay. I have tried using different emulators to no avail. An example is Street Fighter II for Genesis, Player 1 controller works fine, but player 2 controller doesn't work at all. Tried a keyboard as well, both which work fine not in Netplay. My system is a CanaKit - https://amzn.to/2Taj5jf PI 3 B+ w/ 2.5A power supply RetroPie V 4.4.4 (skyscraper-pr6-v3) Built from premade SD image on RetroPie website I have a USB keyboard, mouse and controller hooked up to it Controller is working great outside of Netplay, it's an "EasySMX 2.4G Wireless Controller" and also a Geeekpi SNES USB controller Emulator is lr-genesis-plus-gx Thanks again!

@madmodder123 Cheers. Have you used Netplay outside of a LAN type situation? I've heard it's optimized for LAN use and doesn't work well over the interwebs.

@revlied Please do not post a support request without first reading and following the advice in https://retropie.org.uk/forum/topic/3/read-this-first Along with the information requested there, what part of the Netplay documentation seems outdated?

I run it directly via scripts: (Host Coop) #!/bin/bash /opt/retropie/ports/zdoom/zdoom +set fullscreen 1 -host 2 -warp 01 -skill 2 -iwad /home/pi/RetroPie/roms/ports/doom/doom2.wad -file /home/pi/RetroPie/roms/ports/doom/mod.pk3 or (Host Deathmatch) #!/bin/bash /opt/retropie/ports/zdoom/zdoom +set fullscreen 1 -host 2 -deathmatch...... or (join) #!/bin/bash /opt/retropie/ports/zdoom/zdoom +set fullscreen 1 -iwad /home/pi/RetroPie/roms/ports/doom/doom2.wad -file /home/pi/RetroPie/roms/ports/doom/mod.pk3 -join 192.168.X.X OR Check out the Retropie Doom wiki, regarding mods. You could use the same commands above, but put it in /opt/retropie/configs/port/modname/emulators.cfg (that's what the "runcommand .sh " 0 Port" doom" stuff is pointing to...the "doom" directory in /opt/.../configs) Edit: (Here are some images I made to dress up the MP scripts) https://imgur.com/a/C6GCc Reference: https://zdoom.org/wiki/multiplayer

I seem to have had more luck than most people, but still, I've only used the feature successfully about half a dozen times out of the several dozen I've tried.

I'm experiencing exactly the same problem. I hope someone has a solution.

@flxfit well we dont close threads since they help more than the original poster. But please share with us how it worked as so to benefit others.

I added a few options and some AI bots. @BuZz Any update about the binaries ?

@mediamogul thank you for posting this detailed walkthrough for configuring Netplay in Retropie. Hopefully @BuZz has plans for integrating/automating these required steps to get Netplay working. I haven't yet tried this method, but haven't had any luck with the default Retropie Netplay configuration.

There has been an update to NetPlay in general that supports something called "Net Rooms" which would be similar to random match making. However it doesn't work on Retropie at the moment. https://retropie.org.uk/forum/topic/7913/retroarch-1-4-1-netplay/17 I personally would love to see Retropie to link up with Fightcade https://www.fightcade.com/

@h3r3tic I just tested Streets of Rage 2 with lr-picodrive over LAN and played until the 2nd stage and it ran very smoothly. No sync issues or little half second pauses. Much better experience than lr-snes9x2010!

Every game that has 2+ player mode can be played online. You should read this Wiki page: https://github.com/retropie/retropie-setup/wiki/netplay