Running PFSense 2.3.1-p5 (latest) on a C2D E6550 system with dual intel NICs. Having connectivity issues to PC games such as Grand Theft Auto V. Right now there are 3 machines that play GTAV, and we can’t connect reliably to sessions. Can’t port forward (and shouldn’t have to) because there is more than one machine playing. When we use VPNs (PIR), we can connect and play all in the same session like we’re supposed to, with a hint of lag from the VPN. I have not tested if things get screwy when only one of us is playing at a time, but our old Linksys and ISP routers have never had these issues. Here are the relevant settings that come to mind:
Most games require a static port mapping, I have that set properly as far as I can tell. No ports are forwarded for GTAV. UPnP is on.
PfSense is a security titan, but if I can’t play games behind it cleanly, there is no point to me. Are there settings that can give me more seamless compatibility with games, specifically GTAV?
I'm not really sure why it's not working. Have you tried disabling 1:1 NAT reflection in the advanced firewall settings? You could also try setting the outbound NAT settings to auto and use NAT + proxy instead of pure NAT. These are the settings I use and haven't noticed any issues but it could all be unrelated.
Auto NAT will enable port scrambling (instead of static ports). Port scrambling upsets some games and other poorly designed applications. I'll try disabling 1:1 NAT Reflection and changing Pure NAT to NAT+Proxy and see how that goes, thanks.
I have my outbound NAT set to manual too but my rules are more complicated, those are just the default rules so presumably it would be the same as auto. Port scrambling sounds like something you might want on the outbound NAT if you have a bunch of instances of the same game, but I don't really know so I'll take your word for it.
If none of that helps do you have anything weird in the firewall rules or are they just the default. Also I know you have WAN and LAN but what's on opt1 and opt2?