S:3:817B1221

I'm unable to sign in through my PS5. I've done everything from restarting my network, reinstalling the game, re-signing into my PSN, nothing works.

Any ideas how to fix it?

For what its worth, I tried connecting to the game to a different network and it logged in fine. I'm able to play every other game just fine when connecting to my original network except for marathon.

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I've followed everything here https://help.marathonthegame.com/hc/en-us/articles/46913118924948-Advanced-Troubleshooting-UPnP-Port-Forwarding-and-NAT-Types and nothing works