Port Forwarding for Minecraft Server Not Working

I've been hosting an MC server for months without issues, but within the past couple days other people can't connect to it. I've had people try to connect when I temporarily disabled Windows Defender Firewall, Java Platform SE binary can communicate to both private and public networks, I've temporarily disabled Advanced Security in the xFi app, I've had people try to connect via my IPv4:25565 and IPv6:25565, deleted and recreated the 25565 port forward, and none of the mentioned methods work. I believe the issue lies somewhere in the port forwarding of the server, but I'm also starting to think there may be an issue on the backend with Xfinity that is out of my control.