Issues with Halo games over Ethernet can occur due to connectivity or configuration problems.
Issues with Halo games over Ethernet can occur due to connectivity or configuration problems.
It looks like the problem might be related to Halo's anti-cheat system when two players are connected to the same switch. The reason isn’t clear to me, but I can help you explore it further.
Both accounts appear to be linked under a single main identity, while the other seems to be an alternate version.
We might try Fortnite since it's the first game that comes to mind with EAC, though it only works on Ethernet which makes me doubt it's the real issue. If it were genuinely flagging something, it could also point to problems with two devices connected via Wi-Fi.
It could be a race condition that happens when both PCs try to map the same port at the same time. It seems to be common with Netgear routers, but there's no single solution that works for everyone. Here are some things you can try: Disabling UPnP Changing 'NAT Filtering' from 'Secured' to 'Open' Updating the firmware Installing DD-WRT Using a different router Using a VPN on one of the PCs
This could work since WiFi might slow things down enough to prevent the conflict. Turning off uPNP might lead to more problems across other games as well. The reasoning seems inconsistent unless both WiFi and wired are managed through a single switch in the router. Once it moves outside the router, it should behave identically regardless of configuration, with all traffic appearing to come from the router itself unless IPv6 is used.