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Hi, I've encountered a strange issue with IPsec route-based tunnels between two locations. When there are only a few users, the tunnel speed is around 20 Mbps, but as more users connect, the speed drops to 50-60 Kbps, and resources behind the IPsec tunnel become nearly inaccessible. I'm seeing a lot of checksum errors on both sides. The link is 2 Gbps, nowhere near full utilization, and I'm running the latest version of OPNsense. What could be causing this issue, and where should I start troubleshooting?
