Gradual Internet Performance Degradation since upgrading to 26.7.x

[nero355]

rc.conf:
ip6addrctl_enable = "YES"
ip6addrctl_policy = "ipv4_prefer"

OPNsense: "System: Settings: General" -> "Networking" -> "Prefer IPv4 over IPv6"

I also only use IPv4 only, with no IPv6 address assignments or discovery, and "net.inet6.ip6.auto_linklocal = 0", so I can't comment on effect.

The second setting via the webGUI solves update issues for some in certain cases, but none of those things changes anything to a Android/Apple/Linux/Windows Client ofcourse ;)