quick update:
i learned that sf6 uses the following ports:
Street Fighter 6 on PlayStation 4
TCP: 3478, 3479, 3480
UDP: 3074, 3478, 3479
Street Fighter 6 on PlayStation 5
TCP: 3478, 3479, 3480
UDP: 3074, 3478, 3479
Street Fighter 6 on Xbox Series X
TCP: 3074
UDP: 88, 500, 3074, 3544, 4500
Street Fighter 6 on Steam
TCP: 27015, 27036
UDP: 27015, 27031-27033, 27034-27036
i doubt that anything other than the ports listed under steam should actualls concern me,
but the low port numbers 80 &500 seemed like potential snags
i tried the following things:
i added net.ipv4.ip_unprivileged_port_start=0 to
/etc/sysctl.conf
i added entries for the ports 0-1024 for tcp & udp to my firewall.
these things did not help.
i also tried to set up port forwarding,
where i found out that it would not let me set external ports outside of the range 8044-8063.
i assumed that my provider might be doin weird stuff that was causing the issue.
but if that was actually the case,
why would the windows version work?